Hanna Instruments
About Hanna Instruments
Trusted Hanna Instruments for Precision Water Analysis
About Hanna Instruments
Trusted Hanna Instruments for Precision Water Analysis
Hanna Instruments is a globally recognized manufacturer of advanced analytical instruments for water quality testing, laboratory analysis, industrial process monitoring, and environmental applications. Reyocto supplies genuine Hanna Instruments products, including pH meters, conductivity meters, spectrophotometers, colorimeters, controllers, and transmitters that deliver accurate measurements, reliable performance, and dependable results across diverse industries.
- Precision Testing
- Laboratory Accuracy
- Industrial Monitoring
- Reliable Performance
- Accurate Measurement
- Global Industry Standard
- Easy Calibration
Hanna Instruments Products We Offer

Benchtop Conductivity Meter
Product Description
The HANNA HI6321 Advanced Conductivity Benchtop Meter is a professional laboratory instrument developed for highly accurate conductivity, resistivity, TDS, salinity, and temperature measurements. Equipped with a platinum four-ring conductivity probe, advanced temperature compensation, intelligent calibration, and a large capacitive touchscreen, it delivers dependable performance for water quality analysis, industrial testing, research, and laboratory applications. Comprehensive data logging and network connectivity further improve productivity and traceability.
Key Features
Measurement Parameters
- Conductivity
- Resistivity
- TDS
- Salinity
- Temperature
Conductivity Range
- 0.000 μS/cm to 100 mS/cm
Measurement Units
- μS/cm
- mS/cm
- Ω·cm
- kΩ·cm
- MΩ·cm
- ppm
- ppt
- PSU
- %
Conductivity Calibration
- Up to 4 points
- Standard calibration
- Custom calibration
Salinity Calibration
- Single-point calibration
Temperature Compensation
- Automatic
- Manual
Measurement Modes
- Direct
- Direct / AutoHold
Display
- 7-inch capacitive color touchscreen
- 800 × 480 resolution
Logging
- Manual
- Automatic
- AutoHold
Connectivity
- USB Type-A
- USB Type-C
- Ethernet
- Wi-Fi
- Printer support
Data Export
- CSV
- FTP
- Embedded web server
Power Supply
- 24 VDC adapter
Technical specifications
- Water quality laboratories
- Environmental monitoring
- Wastewater analysis
- Drinking water testing
- Research laboratories
- Universities and educational institutions
- Chemical laboratories
- Pharmaceutical laboratories
- Food and beverage quality control
- Industrial process monitoring
- Laboratory quality assurance
- General analytical testing
Ideal Applications
- Water quality laboratories
- Environmental monitoring
- Wastewater analysis
- Drinking water testing
- Research laboratories
- Universities and educational institutions
- Chemical laboratories
- Pharmaceutical laboratories
- Food and beverage quality control
- Industrial process monitoring
- Laboratory quality assurance
- General analytical testing

Benchtop Multiparameter Meter
Product Description
The HANNA HI6000 Multiparameter Modular System is a fully customizable laboratory measurement platform engineered for advanced analytical applications. Its modular architecture allows users to configure the instrument with up to three measurement modules for pH, ORP, ISE, Conductivity, Resistivity, TDS, Salinity, and Dissolved Oxygen. Designed for demanding laboratories, the HI6000 combines a high-resolution touchscreen, intelligent data management, advanced calibration, application-specific measurement profiles, and extensive connectivity to deliver accurate, efficient, and flexible laboratory testing.
Key Features
- Measures conductivity and temperature simultaneously.
- Suitable for continuous online monitoring.
- Digital RS-485 Modbus RTU communication.
- Fast response time of less than 60 seconds.
- Accurate conductivity and temperature measurements.
- Low power consumption.
- Compact industrial design.
- Easy integration with PLC and SCADA systems.
- Reliable long-term monitoring.
- Designed for industrial and environmental applications.
- Supports smart water quality monitoring.
- Durable construction for continuous operation.
Technical specifications
Supported Measurement Modules
- pH / ORP
- pH / ORP / ISE
- Conductivity
- Dissolved Oxygen
Measurement Parameters
- pH
- ORP
- ISE
- Conductivity
- Resistivity
- TDS
- Salinity
- Dissolved Oxygen
Display
- 7-inch capacitive color touchscreen
- 800 × 480 resolution
Module Capacity
- Up to 3 measurement modules
Logging
- Manual
- Automatic
- AutoHold
Data Storage
- Up to 1,000,000 logged data points
Connectivity
- USB Type-A
- USB Type-C
- Ethernet
- Wi-Fi
- Printer support
- Keyboard support
Data Export
- CSV
- FTP
- Embedded web server
Power Supply
- 24 VDC adapter
Ideal Applications
- Research laboratories
- Environmental laboratories
- Water and wastewater analysis
- Pharmaceutical laboratories
- Food and beverage testing
- Industrial quality control
- Chemical laboratories
- Biotechnology laboratories
- Agricultural laboratories
- Educational institutions
- Environmental monitoring
- Multi-parameter laboratory analysis

Benchtop pH Meter
Product Description
The HANNA HI6221 Advanced pH and ORP Benchtop Meter is a high-performance laboratory meter designed for precise pH, ORP (Redox), mV, and temperature measurements. Featuring a large capacitive touchscreen, advanced calibration options, intelligent data logging, and multiple measurement views, it delivers reliable and repeatable results for research, environmental analysis, quality control, and industrial laboratories. The flexible electrode arm, GLP functions, and extensive connectivity options make routine testing faster and more efficient.
Key Features
- Measures pH, ORP (Redox), mV, and temperature.
- Large 7-inch capacitive color touchscreen.
- Supports multi-touch operation.
- Automatic and manual temperature compensation.
- Up to five-point pH calibration.
- Automatic recognition of Hanna and NIST buffer standards.
- Custom buffer calibration support.
- Direct and AutoHold measurement modes.
- Multiple GLP measurement views.
- Interactive graph and tabulated data display.
- Stable measurement indicator.
- Audible alarm and measurement limit alerts.
- Large internal memory with data logging.
- Manual, automatic, and AutoHold logging.
- USB, Ethernet, and Wi-Fi connectivity.
- CSV data export.
- Embedded web server for data download.
- FTP and email log export.
- Non-volatile memory for settings and logs.
- Flexible electrode holder with adjustable arm.
Technical specifications
Measurement Parameters
- pH
- ORP (Relative mV)
- mV
- Temperature
pH Range
- -2.000 to 20.000 pH
ORP Range
- ±2000 mV
Temperature Compensation
- Automatic
- Manual
pH Calibration
- Up to 5 calibration points
- Hanna buffers
- NIST buffers
- Custom buffers
Measurement Modes
- Direct
- Direct / AutoHold
Display
- 7-inch capacitive color touchscreen
- 800 × 480 resolution
Logging
- Manual logging
- Automatic logging
- AutoHold logging
Connectivity
- USB Type-A
- USB Type-C
- Ethernet
- Wi-Fi
- Printer support
Data Export
- CSV files
- FTP
- Embedded web server
Power Supply
- 24 VDC adapter
Ideal Applications
Water quality laboratories
Environmental monitoring
Wastewater analysis
Drinking water testing
Research laboratories
Universities and educational institutions
Chemical laboratories
Pharmaceutical laboratories
Food and beverage quality control
Industrial process monitoring
Laboratory quality assurance
General analytical testing

Industrial Conductivity Transmitter
Product Description
The Reyocto Chlorine Sensor is a digital residual chlorine sensor designed for accurate online measurement of free residual chlorine in drinking water, wastewater, swimming pools, and industrial water treatment systems. Utilizing a non-membrane constant voltage measuring principle, it eliminates the need for diaphragm replacement while providing fast response, excellent repeatability, and stable long-term performance. With RS-485 Modbus RTU communication and IP68 protection, it is ideal for continuous chlorine monitoring and automated dosing control.
Key Features
- Measures free residual chlorine continuously.
- Non-membrane constant voltage sensing technology.
- No diaphragm replacement required.
- Measuring range up to 20 mg/L.
- High sensitivity and fast response.
- Digital RS-485 Modbus RTU communication.
- Excellent repeatability and measurement stability.
- Supports scaling factor and incremental compensation calibration.
- IP68 waterproof construction.
- Low-maintenance industrial design.
- Suitable for automated chlorine dosing systems.
- Ideal for continuous water quality monitoring.
Technical specifications
Measurement Principle:
- Constant Voltage
Measurement Range:
- Residual Chlorine: 0 – 20.00 mg/L (ppm)
Resolution:
- 0.01 mg/L
Accuracy:
- ±1% or ±0.01 mg/L
Calibration:
- Scaling Factor / Incremental Compensation
Working Conditions:
- Temperature: 0 – 60°C
Communication:
- RS-485 (Modbus/RTU)
Power Supply:
- 12 VDC
Protection Rating:
- IP68
Ideal Applications
The Reyocto Chlorine Sensor is ideal for:
- Drinking water treatment plants
- Water distribution networks
- Swimming pools
- Hospital wastewater treatment
- Industrial water treatment
- Cooling water systems
- Chemical dosing systems
- Water quality monitoring
- Municipal water treatment
- Process automation

Pocket EC Meter
Product Description
The HANNA Pocket EC Meter is a compact, waterproof handheld conductivity meter designed for fast and accurate electrical conductivity (EC) measurements. Featuring automatic temperature compensation, single-point automatic calibration, and a large LCD display, it delivers dependable results for water quality testing, hydroponics, agriculture, laboratories, and industrial applications. Its lightweight design and long battery life make it ideal for routine field and laboratory measurements.
Key Features
- Measures electrical conductivity and temperature.
- Waterproof pocket-sized design.
- Automatic temperature compensation.
- Automatic single-point calibration.
- Large LCD with dual display.
- Stability indicator for reliable readings.
- User-selectable temperature unit.
- Adjustable auto power-off function.
- Low battery indicator.
- Simple two-button operation.
- Fast response sensor.
- Long battery life.
- Protective storage sleeve included.
Technical specifications
Measurement Parameters
- Electrical Conductivity (EC)
- Temperature
EC Range
- 0 to 2000 µS/cm
Temperature Range
- 0.0 to 50.0°C
Resolution
- 1 µS/cm
- 0.1°C
Accuracy
- ±2% Full Scale
- ±0.5°C
Calibration
- Automatic single-point
- 1413 µS/cm standard
Temperature Compensation
- Automatic
Battery
- CR2032 Lithium battery
Battery Life
- Approximately 250 hours
Display
- Dual LCD
Ideal Applications
- Hydroponics
- Greenhouses
- Agriculture
- Drinking water testing
- Water treatment
- Aquaculture
- Educational laboratories
- Environmental monitoring
- Industrial water testing
- General water quality analysis

Pocket Multiparameter Tester (pH EC TDS Temp)
Product Description
The HANNA HI98130 Waterproof pH, EC/TDS & Temperature Tester is a professional multiparameter handheld meter designed to measure pH, electrical conductivity (EC), Total Dissolved Solids (TDS), and temperature with exceptional accuracy. Built with a waterproof floating housing, replaceable pH electrode, automatic temperature compensation, and user-selectable EC/TDS conversion settings, it provides reliable performance for laboratory analysis, hydroponics, agriculture, aquaculture, water treatment, and industrial process monitoring. Its compact design and intuitive operation make it an ideal solution for routine water quality testing.
Key Features
- Measures pH, EC, TDS, and temperature.
- Waterproof floating housing.
- Replaceable pH electrode.
- Automatic temperature compensation.
- Automatic one or two-point pH calibration.
- Automatic single-point EC/TDS calibration.
- User-selectable EC/TDS conversion factor.
- Adjustable temperature compensation coefficient.
- Stability indicator for accurate readings.
- HOLD function for convenient measurement.
- Dual LCD display with battery indicator.
- Battery Error Prevention System (BEPS).
- Automatic power-off function.
- Easy two-button operation.
- Suitable for laboratory and field use.
Technical specifications
Measurement Parameters:
- TOC
- BOD
- COD
- TSS
- UVA
- UVT
- SUVA
Measurement Principle:
- UV Absorption
Measurement Range:
- UVT: 0 – 100%
- ABS: 0 – 6 ABS
Accuracy:
- ±0.5% UVT
COD Range:
- 0 – 2800 mg/L (1 mm)
- 0 – 1400 mg/L (2 mm)
- 0 – 560 mg/L (5 mm)
BOD Range:
- 0 – 1400 mg/L (1 mm)
- 0 – 700 mg/L (2 mm)
- 0 – 280 mg/L (5 mm)
TOC Range:
- 0 – 1200 mg/L (1 mm)
- 0 – 600 mg/L (2 mm)
- 0 – 240 mg/L (5 mm)
Output:
- RS-485 (Modbus/RTU)
Operating Conditions:
- Temperature: 10 – 45°C
- Humidity: Max. 80% RH (Non-condensing)
Construction Material:
- Stainless Steel / Titanium
Protection Rating:
- IP68
Cable Length:
- Standard 10 metres (Longer cable available)
Ideal Applications
- Hydroponics and vertical farming
- Greenhouse cultivation
- Agriculture and fertigation
- Aquaculture and fisheries
- Drinking water testing
- Water treatment plants
- Industrial process monitoring
- Environmental monitoring
- Educational and research laboratories
- General water quality analysis

Pocket pH Meter
Product Description
The HANNA Pocket pH Meter is a compact waterproof pH tester designed for quick and accurate pH measurement in laboratories, agriculture, hydroponics, food processing, and water treatment. Featuring automatic temperature compensation, one or two-point calibration, and a replaceable electrode, it provides dependable pH measurements for routine testing in both field and laboratory environments.
Key Features
- Measures pH and temperature.
- Waterproof pocket-sized design.
- Automatic temperature compensation.
- Automatic one or two-point calibration.
- Replaceable pH electrode.
- Stability indicator.
- Large LCD display.
- User-selectable temperature unit.
- Adjustable auto-off function.
- Long battery life.
- Replaceable cloth junction.
- Protective storage cap.
Technical specifications
Measurement Parameters
- pH
- Temperature
pH Range
- 0.0 to 14.0 pH
Temperature Range
- 0.0 to 50.0°C
Resolution
- 0.1 pH
- 0.1°C
Accuracy
- ±0.1 pH
- ±0.5°C
Calibration
- Automatic one or two-point
- pH 4.01, 7.01, and 10.01 buffers
Temperature Compensation
- Automatic
Battery
- CR2032 Lithium battery
Battery Life
- Approximately 800 hours
Ideal Applications
- Hydroponics
- Agriculture
- Drinking water testing
- Food processing
- Laboratories
- Aquaculture
- Environmental monitoring
- Education
- Industrial water testing
- General pH analysis

Pocket Salinity Tester
Product Description
The HANNA HI98319 Waterproof Salinity Tester is a professional digital tester designed for fast and accurate salinity measurements in seawater applications. Supporting multiple salinity units, automatic temperature compensation, and waterproof construction, it is ideal for aquariums, aquaculture, marine research, and environmental monitoring. The compact floating design ensures reliable performance in both laboratory and field environments.
Key Features
- Measures salinity and temperature.
- Waterproof floating design.
- Supports ppt, PSU, and Specific Gravity.
- Automatic temperature compensation.
- Automatic single-point calibration.
- Dual LCD display.
- Stability indicator.
- User-selectable measurement units.
- Adjustable auto-off function.
- Graphite conductivity electrodes.
- Low battery indicator.
- Compact handheld design.
Technical specifications
- Marine aquariums
- Aquaculture
- Brackish water monitoring
- Seawater testing
- Marine research
- Environmental monitoring
- Coastal water analysis
- Fisheries
- Saltwater laboratories
- Marine water quality assessment
Ideal Applications
- Marine aquariums
- Aquaculture
- Brackish water monitoring
- Seawater testing
- Marine research
- Environmental monitoring
- Coastal water analysis
- Fisheries
- Saltwater laboratories
- Marine water quality assessment

Pocket TDS Teater
Product Description
The HANNA HI98301 Pocket TDS Tester is a reliable waterproof pocket tester engineered for rapid Total Dissolved Solids (TDS) measurement. Designed for everyday water quality testing, it combines automatic temperature compensation, single-point calibration, and an easy-to-read LCD display to provide accurate measurements in laboratories, hydroponics, aquaculture, agriculture, and water treatment applications.
Key Features
- Measures TDS and temperature.
- Waterproof handheld design.
- Automatic temperature compensation.
- Automatic single-point calibration.
- Dual LCD display.
- Stability indicator.
- User-selectable temperature units.
- Adjustable auto-off function.
- Low battery indicator.
- Simple two-button operation.
- Compact and lightweight.
- Long battery operating life.
Technical specifications
Measurement Parameters
- Total Dissolved Solids (TDS)
- Temperature
TDS Range
- 0 to 2000 ppm
Temperature Range
- 0.0 to 50.0°C
Resolution
- 1 ppm
- 0.1°C
Accuracy
- ±2% Full Scale
- ±0.5°C
Calibration
- Automatic single-point
- 1382 ppm standard
Temperature Compensation
- Automatic
TDS Conversion Factor
- 0.5
Battery
- CR2032 Lithium battery
Battery Life
- Approximately 250 hours
Ideal Applications
- Drinking water testing
- Hydroponics
- Agriculture
- Aquaculture
- Reverse osmosis systems
- Water purification
- Laboratories
- Environmental monitoring
- Industrial water testing
- General water quality measurement

Portable Colorimeter
Product Description
The HANNA HI97711 Free Chlorine & Total Chlorine Photometer is a professional portable photometer designed for accurate measurement of free chlorine and total chlorine in drinking water, wastewater, swimming pools, and industrial water systems. Featuring an advanced optical system, CAL Check™ verification, GLP data management, auto logging, and a waterproof floating enclosure, it delivers reliable and repeatable chlorine analysis in both laboratory and field environments.
Key Features
- Measures free and total chlorine.
- Advanced LED optical measurement system.
- CAL Check™ instrument validation.
- User calibration support.
- Built-in tutorial mode.
- GLP data management.
- Automatic data logging.
- Waterproof IP67 floating enclosure.
- Backlit LCD display.
- Positive-locking cuvette positioning.
- Compact portable design.
- Long battery life.
- EPA-compliant measurement method.
- Simple menu-driven operation.
Technical specifications
Measurement Parameters
- Free Chlorine
- Total Chlorine
Measurement Range
- 0.00 to 5.00 mg/L (Cl₂)
Resolution
- 0.01 mg/L
Accuracy
- ±0.03 mg/L ±3% of reading
Measurement Method
- US EPA Method 330.5
- DPD Colorimetric Method
Light Source
- LED
Detector
- Silicon photocell
Optical Filter
- 525 nm interference filter
Logging Capacity
- 50 readings
Display
- 128 × 64 backlit LCD
Power Supply
- 3 × AA alkaline batteries
Battery Life
- More than 800 measurements
Protection Rating
- IP67 floating case
Ideal Applications
- Drinking water testing
- Municipal water treatment
- Swimming pools and spas
- Wastewater treatment
- Environmental monitoring
- Industrial process water
- Cooling water analysis
- Food and beverage production
- Educational laboratories
- Water quality laboratories

Portable Conductivity Meter
Product Description
The Portable Conductivity Meter is a waterproof handheld instrument designed for fast and accurate measurement of electrical conductivity (EC), total dissolved solids (TDS), and temperature in laboratory, industrial, environmental, and field applications. Featuring automatic temperature compensation, one-point calibration, a durable IP67-rated housing, and a large dual-line LCD, it delivers reliable performance for routine water quality monitoring, process control, and environmental testing.
Key Features
- Measures EC, TDS, and temperature
- Simultaneous measurement with dual-line LCD
- Automatic temperature compensation (ATC)
- One-point automatic EC/TDS calibration
- Waterproof IP67-rated housing
- Integrated conductivity and temperature probe
- Selectable EC or TDS measurement mode
- Adjustable TDS conversion factor
- User-selectable temperature coefficient (β)
- Battery life indicator with low battery warning
- Auto-off function for extended battery life
- HOLD function to freeze readings
- Quick-connect probe system
- Audible keypad confirmation
- Compact, lightweight portable design
Technical specifications
Measurement Parameters
- Electrical Conductivity (EC)
- Total Dissolved Solids (TDS)
- Temperature
EC Measurement Range
HI99300
- 0 to 3999 µS/cm
HI99301
- 0.00 to 20.00 mS/cm
TDS Measurement Range
HI99300
- 0 to 2000 ppm
HI99301
- 0.00 to 10.00 ppt
Temperature Range
- -5.0 to 105.0°C
- 23.0 to 221.0°F (HI99301)
Resolution
- 1 µS/cm or 0.01 mS/cm
- 1 ppm or 0.01 ppt
- 0.1°C / 0.1°F
Accuracy
- EC/TDS: ±2% Full Scale
- Temperature: ±0.5°C / ±1.0°F
Temperature Compensation
- Automatic
- Adjustable β value from 0.0 to 2.4%/°C
Calibration
- Automatic one-point calibration
- Conductivity and TDS calibration supported
TDS Conversion Factor
- Adjustable from 0.45 to 1.00
Display
- Large dual-line LCD
Probe
- HI763063 EC/TDS probe with integrated temperature sensor
- DIN connector with 1 m cable
Power Supply
- 3 × 1.5 V AAA alkaline batteries
Battery Life
- Approximately 500 hours of continuous use
Auto-Off
- 8 minutes
- 60 minutes
- Disabled
Operating Conditions
- 0 to 50°C
- Maximum 100% RH
Dimensions
- 154 × 63 × 30 mm
Weight
- 196 g (including batteries)
Protection Rating
- IP67 Waterproof
Ideal Applications
- Water quality testing
- Drinking water analysis
- Wastewater monitoring
- Environmental monitoring
- Aquaculture
- Hydroponics
- Food and beverage production
- Industrial process monitoring
- Laboratory testing
- Water treatment plants
- Educational laboratories
- Field water quality surveys

Portable Dissolved Oxygen Meter
Product Description
The HANNA HI9146 Portable Dissolved Oxygen & Temperature Meter is a professional portable instrument engineered for accurate dissolved oxygen and temperature measurements in laboratory, environmental, aquaculture, and industrial applications. Featuring a polarographic dissolved oxygen probe, automatic temperature, salinity, and altitude compensation, AutoEnd stability detection, GLP functions, and a backlit LCD, it delivers reliable and repeatable results for both field and laboratory water quality analysis.
Key Features
- Measures dissolved oxygen and temperature.
- Displays DO in ppm and % saturation.
- Polarographic DO probe with built-in sensor.
- Automatic temperature compensation.
- Automatic salinity compensation.
- Automatic altitude compensation.
- AutoEnd stability measurement function.
- Good Laboratory Practice (GLP) support.
- Backlit LCD display.
- Battery Error Prevention System (BEPS).
- User programmable instrument ID.
- Automatic power-off function.
- Waterproof field-ready probe.
- Fast and reliable measurements.
- Ideal for laboratory and field applications.
Technical specifications
Measurement Parameters
- Dissolved Oxygen (DO)
- Temperature
DO Range
- 0.00 to 45.00 ppm
- 0.0 to 300.0% Saturation
Temperature Range
- 0.0 to 50.0°C
- 32.0 to 122.0°F
Resolution
- 0.01 ppm
- 0.1% Saturation
- 0.1°C
- 0.1°F
Accuracy
- ±1.5% Full Scale
- ±1 Least Significant Digit
- ±0.2°C (excluding probe error)
Calibration
- Automatic one-point calibration
- Automatic two-point calibration
Temperature Compensation
- Automatic
Salinity Compensation
- 0 to 80 g/L
- 1 g/L adjustment steps
Altitude Compensation
- 0 to 4000 m
- 100 m adjustment steps
Probe
- Polarographic dissolved oxygen probe
- Built-in temperature sensor
- PTFE membrane
- Platinum cathode
- Silver chloride anode
Display
- Backlit LCD
Power Supply
- 3 × 1.5V AAA batteries
Battery Life
- Approximately 200 hours
Operating Environment
- 0 to 50°C
- Maximum 95% RH non-condensing
Dimensions
- 185 × 72 × 36 mm
Weight
- 300 g
Ideal Applications
- Drinking water testing
- Wastewater treatment
- Aquaculture monitoring
- Environmental water analysis
- Water treatment plants
- Industrial process monitoring
- Surface water analysis
- Research laboratories
- Educational institutions
- General dissolved oxygen measurement

Portable Multiparameter Meter
Product Description
The Reyocto FloPro-Mag Electromagnetic Flow Meter is a high-performance flow measurement solution designed for accurate monitoring of conductive liquids in industrial, municipal, and water treatment applications. Available in sizes ranging from DN15 to DN200, it provides reliable flow measurement with an accuracy of ±0.5% of the measured value. Featuring multiple body and electrode material options, remote or integral transmitter configurations, LCD display, and 4–20 mA plus RS485 outputs, the FloPro-Mag offers seamless integration with industrial automation and process control systems.
Key Features
- High-accuracy electromagnetic flow measurement.
- Suitable for conductive liquids.
- Available in sizes from DN15 to DN200.
- Measurement accuracy of ±0.5% of the measured value.
- Remote and integral transmitter options.
- LCD display for real-time flow monitoring.
- 4–20 mA and RS485 communication outputs.
- Supports ANSI and DIN flange standards.
- Multiple body, flow tube, and electrode material options.
- Rugged IP65-rated enclosure.
- Low maintenance with no moving parts.
- Designed for industrial process automation.
Technical specifications
Flow Meter Type:
- Electromagnetic Flow Meter
Nominal Size:
- DN15 – DN200
Accuracy:
- ±0.5% of Measured Value
Working Pressure:
- Up to 25 Kg/cm²
Flow Tube Material:
- SS304
- SS316
Electrode Material:
- Hastelloy
- SS316
Body Material:
- MS
- SS304
- SS316
Flange Material:
- MS
- SS304
- SS316
Flange Standard:
- ANSI / DIN
Power Supply:
- 110–230 VAC, 50 Hz
Protection Rating:
- IP65
Transmitter Type:
- Remote
- Integral (Standard)
Display:
- LCD
Signal Output:
- 4–20 mA
- RS485
Ideal Applications
The Reyocto FloPro-Mag Electromagnetic Flow Meter is ideal for:
- Water treatment plants
- Wastewater treatment plants
- Industrial process water
- Chemical processing industries
- Food & beverage manufacturing
- Pharmaceutical industries
- Irrigation systems
- Cooling water systems
- Mining and mineral processing
- Municipal water distribution
- Process automation
- Industrial flow monitoring

Conductivity Controller
Product Description
The Reyocto Digital DO Sensor is an industrial dissolved oxygen sensor designed for continuous online monitoring of dissolved oxygen (DO) and water temperature. Utilizing a polarographic measuring principle, it delivers accurate and stable DO measurements for water treatment, aquaculture, environmental monitoring, and industrial process applications. With digital RS-485 Modbus RTU communication, IP68 protection, and low-maintenance construction, the sensor enables reliable integration into automated water quality monitoring systems.
Key Features
- Continuous conductivity measurement and control.
- Compact panel-mounted controller design.
- Large, easy-to-read LCD display.
- Automatic and manual operating modes.
- Adjustable conductivity setpoint.
- Dry contact dosing relay.
- Programmable overdose protection timer.
- Relay OFF, AUTO, and ON override.
- Multicolor LED status indicator.
- Fuse-protected relay contacts.
- Optional 4–20 mA isolated output.
- External dosing disable input.
- Splash-resistant protective cover.
- Fire-retardant enclosure.
- Easy quick-connect terminal wiring.
- Compatible with HI7632 conductivity probes.
Technical specifications
Supported Models
- BL983317 – Relay activates below setpoint
- BL983327 – Relay activates above setpoint
Measurement Parameter
- Electrical Conductivity (EC)
Measurement Unit
- mS/cm
Control Function
- Automatic dosing control
- Manual relay control
Relay Operation
- BL983317: Relay ON below setpoint
- BL983327: Relay ON above setpoint
Calibration
- Manual calibration with trimmer
Temperature Compensation
- Automatic
- 5 to 50°C (41 to 122°F)
Dosing Relay
- Maximum 2A
- 250 VAC or 30 VDC
- Fuse protected
Overdose Protection
- Adjustable from approximately 5 to 30 minutes
- Can be disabled
Operating Modes
- OFF
- AUTO
- ON
Display
- Large LCD
Status Indicator
- Multicolor LED
Power Supply
- 12 VDC models
- 115/230 VAC models
Input Power
- 3 W (12 VDC models)
- 10 VA (AC models)
Dimensions
- 83 × 53 × 99 mm
Weight
- 200 g (12 VDC)
- 300 g (AC models)
Recommended Probe
- HI7632-00 EC probe with 2 m cable
- HI7632-00/6 EC probe with 6 m cable
Ideal Applications
- Boiler feed water control
- Cooling tower monitoring
- Cooling water management
- Industrial water treatment
- Chemical dosing systems
- Nutrient dosing systems
- Water conditioning plants
- Process water monitoring
- Manufacturing facilities
- Industrial automation
- Water quality control
- Continuous conductivity monitoring

Portable pH Meter
Product Description
The HANNA Portable pH/Temperature Meter is a rugged handheld instrument designed for accurate pH and temperature measurements in laboratories, industrial plants, water treatment facilities, and field applications. Featuring automatic temperature compensation, automatic calibration, HOLD function, and a durable waterproof design, it provides fast, dependable, and repeatable measurements for everyday testing.
Key Features
- Measures pH and temperature.
- Portable waterproof design.
- Automatic temperature compensation.
- Automatic one or two-point calibration.
- HOLD function for stable readings.
- Automatic buffer recognition.
- Selectable °C and °F units.
- Large LCD display.
- Low battery indicator.
- Easy one-hand operation.
- Durable field-ready construction.
- Fast measurement response.
Technical specifications
Measurement Parameters
- pH
- Temperature
pH Range
- -2.00 to 16.00 pH
Temperature Range
- -5.0 to 105.0°C
- 23.0 to 221.0°F
pH Accuracy
- ±0.02 pH
Temperature Accuracy
- ±0.5°C
- ±1°C (extended range)
Calibration
- Automatic one-point
- Automatic two-point
Temperature Compensation
- Automatic
Display
- LCD
Functions
- HOLD
- Auto calibration
- Buffer selection
Ideal Applications
- Water quality testing
- Drinking water analysis
- Wastewater treatment
- Environmental monitoring
- Chemical laboratories
- Food and beverage industry
- Agriculture
- Hydroponics
- Educational laboratories
- Industrial process monitoring
Ideal Applications
- Water quality testing
- Drinking water analysis
- Wastewater treatment
- Environmental monitoring
- Chemical laboratories
- Food and beverage industry
- Agriculture
- Hydroponics
- Educational laboratories
- Industrial process monitoring

COD Photometer
Product Description
The Reyocto Salinity Sensor is an industrial-grade digital sensor designed for continuous online measurement of salinity in water treatment, aquaculture, desalination, and industrial process applications. Built with a durable graphite measuring cell and corrosion-resistant PPS housing, it delivers stable and reliable salinity measurements even in demanding environments. Featuring RS-485 Modbus RTU communication, automatic or manual temperature compensation, and IP68-rated protection, the sensor integrates seamlessly with PLC, SCADA, and Industrial IoT systems for accurate real-time water quality monitoring.
Key Features
- Continuous online salinity measurement.
- Graphite measuring cell for stable and repeatable performance.
- Wide measuring range up to 100,000 mg/L.
- Automatic and manual temperature compensation.
- Digital RS-485 Modbus RTU communication.
- Programmable Modbus Slave ID.
- Supports multiple conductivity constants (K=0.01, K=0.1, K=1, K=10).
- Configurable low, medium, and high measurement ranges.
- One-point calibration with data initialization support.
- Durable PPS housing for excellent chemical resistance.
- IP68-rated waterproof construction for continuous immersion.
- Adjustable cable length and multiple threaded installation options.
Technical specifications
Measurement Modes
- Photometer
- Digital pH Measurement
Measurement Parameters
- Chemical Oxygen Demand (COD)
- pH
- Absorbance
- Water Quality Parameters
Optical System
- LED light source
- Silicon photocell detector
- Optical filters
- Reference detector
Photometer Range
- 0.000 to 4.000 Abs
Photometer Resolution
- 0.001 Abs
Photometer Accuracy
- ±0.003 Abs
Number of Test Methods
- 98 pre-programmed methods
pH Measurement Range
- -2.00 to 16.00 pH
pH Resolution
- 0.01 pH
pH Accuracy
- ±0.01 pH
Temperature Compensation
- Automatic
pH Calibration
- Two-point calibration
- Five selectable buffer standards
Data Logging
- Up to 1000 readings
Display
- Backlit LCD
Connectivity
- USB Host
- USB Device
Power Supply
- Rechargeable lithium-polymer battery
- USB power adapter
Supported Sample Containers
- Standard round cuvettes
- 16 mm reagent vials
Ideal Applications
- Water quality laboratories
- Wastewater treatment plants
- Drinking water testing
- Environmental monitoring
- Industrial process water analysis
- Municipal water utilities
- Food and beverage quality control
- Pharmaceutical laboratories
- Chemical laboratories
- Research institutions
- Educational laboratories
- Boiler and cooling water analysis
- Environmental compliance testing
- Industrial quality assurance
- Routine laboratory water analysis

Industrial pH Transmitter
Product Description
The Reyocto Turbidity Sensor is an industrial digital sensor designed for continuous measurement of turbidity in drinking water, wastewater, industrial process water, and environmental monitoring applications. Based on the scattering light measurement principle, it provides highly accurate turbidity measurements with excellent stability and repeatability. Featuring RS-485 Modbus RTU communication, IP68/NEMA6P protection, and flexible calibration options, the sensor delivers reliable real-time monitoring for automated water quality systems.
Key Features
- Continuous industrial pH monitoring.
- Dual acid and alkaline dosing control.
- Independent acid and alkaline setpoints.
- Large easy-to-read digital display.
- Automatic and manual operating modes.
- Built-in electrode diagnostic functions.
- Offset and amplifier verification tests.
- Adjustable alarm tolerance.
- Compatible with standard pH electrodes.
- Supports amplified electrodes and transmitters.
- Selectable recorder output configuration.
- Front-panel membrane keypad controls.
- Splash-resistant front panel.
- Panel-mounted industrial design.
- Easy installation and maintenance.
Technical specifications
Measurement Parameter
- pH
Measurement Range
- 0.00 to 14.00 pH
Resolution
- 0.01 pH
Accuracy
- ±0.02 pH
Calibration
- Manual offset calibration
- Manual slope calibration
Dosing Control
- Independent acid dosing control
- Independent alkaline dosing control
Setpoint Adjustment
- Separate acid setpoint
- Separate alkaline setpoint
- Coarse and fine adjustment
Alarm Function
- Adjustable alarm tolerance
Diagnostic Functions
- Sensor test
- pH 7 offset test
- pH 4 amplifier test
Electrode Compatibility
- Standard BNC pH electrodes
- Amplified pH electrodes
- 4–20 mA transmitter input
Recorder Output
- Selectable 0–20 mA
- Selectable 4–20 mA
Auxiliary Output
- ±5 V supply for amplified electrodes
Temperature Sensor
- Pt100 temperature sensor connection
Installation
- Panel mounted
User Interface
- Membrane keypad
- LED status indicators
- Digital display
Ideal Applications
- Water treatment plants
- Wastewater treatment systems
- Chemical processing industries
- Neutralization systems
- Industrial process control
- Cooling water treatment
- Boiler water treatment
- Food and beverage processing
- Pharmaceutical manufacturing
- Environmental monitoring
- Industrial automation
- General pH process control

pH Controller
Product Description
The HANNA BL931700 Panel Mounted pH Indicator & Controller is a compact industrial controller designed for continuous pH monitoring and automatic dosing control in water treatment and industrial process applications. It combines accurate pH measurement with configurable relay control, 4-20 mA output, adjustable setpoint, and dosing timer functions for dependable process automation. Compatible with standard pH electrodes, the BL931700 is ideal for panel-mounted installations where reliable pH regulation is essential.
Key Features
- Continuous pH monitoring and control.
- Panel-mounted industrial design.
- Compatible with standard BNC pH electrodes.
- Manual pH calibration.
- Adjustable pH setpoint.
- Acid or alkaline dosing selection.
- Adjustable overtime safety control.
- Relay-controlled dosing output.
- 4–20 mA recorder output.
- External dosing disable contact.
- Multi-color LED status indication.
- OFF, AUTO, and ON operating modes.
- Compact installation.
- Suitable for industrial automation.
Technical specifications
Measurement Parameter
- pH
Measurement Range
- 0.00 to 14.00 pH
Resolution
- 0.01 pH
Accuracy
- ±0.02 pH
Calibration
- Manual offset and slope adjustment
Control Mode
- Acid dosing
- Alkaline dosing
Setpoint
- Adjustable
Relay Output
- Dosing relay
Analog Output
- 4–20 mA
Power Options
- 12 VDC
- 115/230 VAC
Ideal Applications
- Water treatment plants
- Chemical dosing systems
- Industrial process control
- Cooling towers
- Wastewater treatment
- Neutralization systems
- Swimming pools
- Process water monitoring
- Manufacturing plants
- Environmental monitoring

Spectrophotometer
Product Description
The Reyocto FloPro-Mag Electromagnetic Flow Meter is a high-performance flow measurement solution designed for accurate monitoring of conductive liquids in industrial, municipal, and water treatment applications. Available in sizes ranging from DN15 to DN200, it provides reliable flow measurement with an accuracy of ±0.5% of the measured value. Featuring multiple body and electrode material options, remote or integral transmitter configurations, LCD display, and 4–20 mA plus RS485 outputs, the FloPro-Mag offers seamless integration with industrial automation and process control systems.
Key Features
- High-accuracy electromagnetic flow measurement.
- Suitable for conductive liquids.
- Available in sizes from DN15 to DN200.
- Measurement accuracy of ±0.5% of the measured value.
- Remote and integral transmitter options.
- LCD display for real-time flow monitoring.
- 4–20 mA and RS485 communication outputs.
- Supports ANSI and DIN flange standards.
- Multiple body, flow tube, and electrode material options.
- Rugged IP65-rated enclosure.
- Low maintenance with no moving parts.
- Designed for industrial process automation.
Technical specifications
Flow Meter Type:
- Electromagnetic Flow Meter
Nominal Size:
- DN15 – DN200
Accuracy:
- ±0.5% of Measured Value
Working Pressure:
- Up to 25 Kg/cm²
Flow Tube Material:
- SS304
- SS316
Electrode Material:
- Hastelloy
- SS316
Body Material:
- MS
- SS304
- SS316
Flange Material:
- MS
- SS304
- SS316
Flange Standard:
- ANSI / DIN
Power Supply:
- 110–230 VAC, 50 Hz
Protection Rating:
- IP65
Transmitter Type:
- Remote
- Integral (Standard)
Display:
- LCD
Signal Output:
- 4–20 mA
- RS485
Ideal Applications
The Reyocto FloPro-Mag Electromagnetic Flow Meter is ideal for:
- Water treatment plants
- Wastewater treatment plants
- Industrial process water
- Chemical processing industries
- Food & beverage manufacturing
- Pharmaceutical industries
- Irrigation systems
- Cooling water systems
- Mining and mineral processing
- Municipal water distribution
- Process automation
- Industrial flow monitoring

Turbidimeter
Product Description
The HANNA HI98703 Portable Turbidimeter is a high-accuracy EPA-compliant instrument developed for measuring turbidity in drinking water, wastewater, and environmental water samples. Equipped with a precision optical system, multiple measurement modes, advanced calibration, GLP functions, data logging, and USB/RS232 connectivity, it provides dependable turbidity measurements for laboratory and field applications.
Key Features
- Measures turbidity in NTU.
- EPA Method 180.1 compliant.
- High-precision optical system.
- Tungsten lamp with dual detectors.
- Multiple measurement modes.
- Continuous and averaging measurements.
- Two to four-point calibration.
- GLP calibration records.
- Internal data logging.
- USB and RS232 connectivity.
- Tag Identification System (TIS).
- Splash-resistant portable design.
- Large backlit LCD.
- Carrying case included.
Technical specifications
Measurement Parameter
- Turbidity
Measurement Unit
- NTU
Measurement Range
- 0.00 to 1000 NTU
Measurement Method
- Nephelometric
Standards
- USEPA Method 180.1
- Standard Method 2130 B
Light Source
- Tungsten filament lamp
Detection System
- Scattered light detector
- Transmitted light detector
Calibration
- 2, 3, or 4-point calibration
Logging Capacity
- 200 measurements
Communication
- USB
- RS232
Display
- Backlit LCD
Power Supply
- Batteries
- AC adapter
Ideal Applications
- Drinking water testing
- Wastewater monitoring
- Surface water analysis
- Environmental laboratories
- Municipal water treatment
- Industrial water quality control
- Research laboratories
- Regulatory compliance testing
- Educational institutions
- Field water monitoring

Accesories and Solutions
Product Description
HANNA Accessories & Solutions are designed to enhance the performance, accuracy, and longevity of Hanna analytical instruments. This comprehensive range includes high-quality electrodes, probes, calibration solutions, cleaning solutions, and storage solutions that support reliable measurements across laboratory, industrial, environmental, and water quality applications. Manufactured to Hanna’s strict quality standards, these accessories ensure consistent instrument performance, simplified maintenance, and dependable analytical results.
Key Features
- Genuine Hanna replacement accessories.
- Ensures accurate measurement performance.
- Improves instrument reliability.
- Extends sensor service life.
- High-quality laboratory-grade materials.
- Compatible with Hanna instruments.
- Easy installation and replacement.
- Supports routine maintenance procedures.
- Reliable calibration and verification.
- Suitable for laboratory and field use.
- Durable construction for demanding environments.
- Professional quality assurance standards.
Technical Specifications
- Genuine Hanna compatible accessories.
- Professional laboratory-grade construction.
- High purity chemical formulations.
- Reliable sensor replacement components.
- Durable chemical resistant materials.
- Stable calibration solution performance.
- Easy installation and maintenance.
- Compatible with multiple Hanna instruments.
- Designed for long-term reliability.
- Suitable for laboratory and industrial use.
| Model No. | RNGpHN-01 |
| Measuring Principle | Electrolyte |
| Measuring Range | 0-14 pH, 10°C-110°C |
| Accuracy | 0.1 pH |
| Resolution | 0.001 pH |
| Working Condition | 0-110°C |
Ideal Applications
- Laboratory analysis
- Water quality testing
- Environmental monitoring
- Industrial process control
- Wastewater treatment
- Drinking water analysis
- Chemical laboratories
- Research laboratories
- Educational institutions
- Routine instrument maintenance
| Model No. | RNGpHN-01 |
| Measuring Principle | Electrolyte |
| Measuring Range | 0-14 pH, 10°C-110°C |
| Accuracy | 0.1 pH |
| Resolution | 0.001 pH |
| Working Condition | 0-110°C |
Why Choose Hanna Instruments?
Globally Trusted Brand
Hanna Instruments is trusted worldwide for delivering reliable analytical equipment with exceptional measurement accuracy across laboratory and industrial applications.
Comprehensive Testing Solutions
A complete portfolio of meters, controllers, photometers, transmitters, and laboratory instruments supports diverse water quality monitoring requirements.
Exceptional Measurement Accuracy
Every instrument is engineered to provide precise, repeatable, and dependable results for critical water quality and process measurements.
Designed for Industrial & Laboratory Use
Products are built to perform reliably in demanding industrial facilities, laboratories, research centers, and environmental monitoring applications.
Easy Operation and Maintenance
Intuitive interfaces, simple calibration procedures, and durable construction ensure efficient operation with minimal maintenance requirements.
Genuine Hanna Instruments from Reyocto
Reyocto supplies authentic Hanna Instruments products with expert guidance, helping customers choose the right analytical solution for every application.
Ready to Achieve Reliable Water Testing with Hanna Instruments?
Struggling with inconsistent water quality measurements or unreliable testing equipment? Reyocto provides genuine Hanna Instruments designed to deliver precise analysis, dependable performance, and confident decision-making for laboratory, industrial, and environmental applications.
FAQ's
Frequently Asked Questions
What Hanna Instruments products are available through Reyocto?
Yes. Hanna Instruments are widely used for industrial water treatment, process control, environmental monitoring, wastewater analysis, and laboratory testing, providing accurate measurements and dependable performance across demanding operational environments.
Are Hanna Instruments suitable for industrial water quality monitoring?
Benchtop pH Meters, Conductivity Meters, Multiparameter Meters, Spectrophotometers, and COD Photometers are ideal for laboratory applications requiring highly accurate, repeatable measurements and comprehensive water quality analysis.
Which Hanna Instrument is suitable for laboratory water analysis?
Yes. Hanna offers multiparameter instruments capable of measuring pH, EC, TDS, temperature, dissolved oxygen, salinity, and additional water quality parameters depending on the selected instrument and application requirements.
Can Hanna Instruments measure multiple water quality parameters?
Yes. Hanna offers multiparameter instruments capable of measuring pH, EC, TDS, temperature, dissolved oxygen, salinity, and additional water quality parameters depending on the selected instrument and application requirements.
Why is regular calibration important for Hanna Instruments?
Routine calibration ensures measurement accuracy, maintains instrument reliability, extends sensor lifespan, and helps produce consistent testing results. Using genuine Hanna calibration solutions is recommended for optimal long-term instrument performance.
Why should I purchase Hanna Instruments from Reyocto?
Reyocto supplies authentic Hanna Instruments backed by expert technical guidance and dependable customer support. We help businesses select the right analytical instruments for water quality testing, laboratory analysis, industrial monitoring, and environmental applications.
