Water Quality Testing

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MJK pHix ® Compact, pH, Redox And Temperature Transmitter

Product Features


  • MJK pHix ® Compact, pH, Redox And Temperature Transmitter allows for simple installation in pipes and open tanks and eliminates additional fittings.
  • Includes electrodes, fittings, cables and transmitter built together in one unit.
  • Fully submersible 4-20 mA transmitter including electrode.
  • No connectors or electrode-to-transmitter cables.
  • Eliminates problems with humidity and electrical noise.
  • Large reference junction very resistant to clogging and hence measuring errors due to clogging.
  • Very robust - designed for water/wastewater and industrial applications
  • Unique simple and easy buffer adjustment
  • Low impedance sensor, offers stable and accurate measurements, even at low temperatures and low ion activity
  • Automatic temperature compensation for pH always included
  • Additional 4-20 mA output for temperature 0-50°C (0-80°C) / 32-122°F (32-120°F) as option
  • Electrode with long lifetime and reduced maintenance

Electric Contact Meter Type KLL-Q-2
Seba Electric Contact Meter Type KLL-Q

Product Features
  • Seba Electric Contact Meter Type KLL-Q can be used in groundwater, lakes and reservoires down to 500 m depth.
  • All standard quality parameters available. 
  • Now new: with graduated round cable and additional optical sensors: Cyanobacteria, Rhodamine WT and O2.


Product Features
  • For measuring sludge concentration in waste water plants and turbidity at waterworks.
  • The MJK SuSix® sensors’ 6 optical windows and its patented measuring system delivers measurements from turbidity in clean drinking water to suspended solids in heavy sludge, all from only one sensor model.
  • The ranges covered in turbidity are 0,001 to 9999 FNU / NTU / FTU and suspended solids in the range from 0,001g/l to 400 g/l.
  • Easy calibration 
  • Strong correlation with laboratory results
  • High stability 
  • Universal sensor 
  • Built-in cleaning system (option) 
  • Built-in logger 
  • Network ready

MJK Oxix ® Dissolved Oxygen Transmitter

Product Features
  • MJK Oxix ® Dissolved Oxygen Transmitter to measure dissolved oxygen in water and wastewater processes.
  • When the sensor’s built in tubing connection is connected to a valved air or water line, a regular flushing of the optics can be controlled by the converter.
  • The sensor utilizes an optical technique that does not consume oxygen like all standard membrane sensors.
  • The sensor has a light source (LED) transmitting light at a specific wave length to the backside of the optical window covered with a special gel.
  • A fluorescing process occurs depending on the amount of dissolved oxygen in the liquid and the sensor determinate the oxygen level as a function of the fluorescing process.
  • The sensor has a range of 0 – 25 ppm, with a resolution of 0,02 ppm and an accuracy of 1 % or 0,02 ppm.
  • The temperature range is 0 - 50°C / 32-122°F 
  • The converter has a logical menu structure with mobile phone type navigation.
  • A number of selectable languages in the large graphical display.
  • The display indicates the measurement in engineering units and has a built-in data logger with a memory of 160.000 data points with time/date stamp.
  • The logged measurements can easily be transferred as a CSV file to a PC using the buil-in USB port and this allows easy spreadsheet data analysis.
  • The converter has a 4-20mA output, two relays for control or alarms, and a digital input for automatic range changes and more calibration curves.
  • Alarms are also indicated as pop-up menus and stored in the converter’s alarm log.
  • The display is configured by the operator so only the relevant data are indicated with an option to name the display with a site tag name or number.
  • The converter has a time function to control the cleaning system for the sensor for almost maintenance free operation. 
  • Converter can work in networks with other Oxix® units, other MJK products, or with third party SCADA and telemetry systems via is RS485 Modbus communications.
  • The display can supervise, set-up and operate up to four Oxix®or other MJK devices for enhanced economies of space and lower cost.
  • The MJK Oxix® Ball Float rises and falls with the water level keeping the MJK Oxix® Transmitter right where it needs to be.  
  • A mounting kit with a float has been developed which holds the Oxix® sensor at the optimal measurement depth.



Seba Checker-2

Product Features
  • The portable instrument for water quality measurement in rivers.
  • Seba Checker-2 for connection of multiparameter probes MPS-D3, MPS-D8 and MPS-K16.
  • Parameters: °C, conductivity, salinity, O2, pH, ORP, NH3, NO3-, Cl-, NH4+, Na+, Ca2+, F-, K+, turbidity, Chl a etc.

Multiparameter Sensor MPS-K16
Seba Multiparameter Sensor MPS-K16

Product Features
  • Up to 17 parameters can be measured: Water level, °C, Conductivity, Salinity, O2, pH, ORP, NH3, NO3-, Cl-, NH4+, Na+, Ca2+, F-, K+, Turbidity, Chl a, Cyano Bacteria and Rhodamine WT.
  • Seba Multiparameter Sensor MPS-K16 for use with data logger MDS-5.

Multiparameter Sensor MPS-D8
Seba Multiparameter Sensor MPS-D8

Product Features
  • 13 parameters can be measured: water level, °C, conductivity, salinity, O2, pH, ORP, NH3, NO3-, Cl-, NH4+, Na+, Ca2+, F-, K+ and turbidity.
  • Seba Multiparameter Sensor MPS-D8 for use with data logger MDS-5.

Multiparameter Sensor MPS-D3
Seba Multiparameter Sensor MPS-D3

Product Features
  • Seba Multiparameter Sensor MPS-D3 is digital sensor with 3/4 electrodes for water level, temperature and electric conductivity / salinity and TDS.
  • For use with data logger MDS 5 or LogCom / FlashCom online systems.

Fluid Flow Loggin Type KLL-Q-M1
Seba Fluid Flow Loggin Type KLL-Q-M1

Product Features
  • Seba Fluid Flow Loggin Type KLL-Q-M1 for vertical measurement of flow velocity and water quality.

Algae Torch
BBE Algae Torch

Product Features
  • BBE Algae Torch for the simultaneous quantification of the chlorophyll-a content of cyanobacteria and the total chlorophyll content of microalgae in water.
  • A complete measurement needs less than 20 seconds.
  • No sampling or preparation is necessary.
  • Measurement of algal concentrations via fluorescence
  • The intensity of the chlorophyll fluorescence is used to calculate the different algae as chlorophyll-a, here blue-green algae (cyanobacteria) and total microalgae.
  • The results are shown immediately on the display and stored in the internal memory.
  • An encapsulated USB port enables subsequent data transfer to a PC.
  • Automatic turbidity correction.
  • The instrument is deployable down to depth of 10 m (optionally 100 m).
  • Internal rechargeable batteries.