ISFET pH Meter measuring device 

ISFET pH meter with various probes / Very high accuracy / USB port Autom. Temperature compensation / Multilingual menu / IP65


The innovative ISFET (ion-selective field effect transistor) technology enables maintenance-free operation. Conventional electrodes of pH meters must always be stored in appropriate storage solutions for storage. The ISFET-ph meter ISFET series can save both costs and time. The integrated data logger of the ISFET-ph Meter allows a continuous measurement up to 45 days with the largest storage interval. Thus, trends in different process steps can be created and evaluated. The high accuracy of the ISFET-ph meter also allows it to be used in highly critical mixing operations. Measurement data stored in the ISFET-ph-Meter ISFET series can be downloaded and processed using the supplied software. The variety of available probes allows a wide range of applications. The optionally available probes are used in the laboratory, mixing processes in industry and soil culture studies. With the help of the built-in probe Pt1000 temperature sensor, the measurement result is always automatically compensated.

Electrodes must be selected in the accessories!


  • pH measurement function  
    Measuring range 0.00 ... 16.00 pH
    Resolution 0.005 pH
    Accuracy ± 0.005 pH
    Calibration Up to 5 calibration points
    Automatic temperature compensation Yes
    Temperature measurement function  
    Measuring range -20 ... 120°C / -4 ... 248°F
    Resolution 0.1°C / 32.2°F
    Accuracy ± 0.5°C / 32.9°F
    data storage  
    Measurement memory manually Max. 500 readings
    Measurement memory autom. Max. 65,000 measured values
    Save interval Adjustable, 1 ... 60 s
    Send stored measurement data via USB Yes
    Real-time measurement via USB Yes, max. 1 measured value / s
    pH Min. or max. adjustable
    Temperature Min. or max. adjustable
    Stability control Yes, change in pH / time
    Languages German, English, French, Dutch, Spanish
    Display 3.2" color LCD
    Interface USB
    User offset -9.99 ... 9.99 pH
    Dimensions (W x H x D) 93 x 184 x 35 mm / 3.7 x 7.2 x 1.4 in
    Mass About 400 g / < 1 lb
    Protection IP65
    Power supply 3 x AA NiMH 2400-mAh
    Operating time with batteries Approx. 7 h
    Approx. 26 h with activated battery saving mode
    Charging time of the batteries About 7 h

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