The most important features:

Detailed description:

  • CPR-411 used for simultaneous pH, mV (redox potential) and temperature measurements.

  • Characteristic features:

    The standard set includes CT2B-121 temperature sensor with Pt-1000B resistor, ERS-2 redox electrode, EPP-1 pH electrode for measurements in clean water. It should not be used in other types of liquid. Measurements in liquids with sediments should be made with use of IJ-44A pH electrode, which enables measurements in various samples of both pure and contaminated liquids and semi-solids. Its unusual construction (”intermediate junction”) protects the real junction (diaphragma) of the electrode against clogging, ensures stable measurements in these types of liquids or semi-liquid masses, in which other electrodes stop working quickly. When properly handled and maintained, the electrode's lifetime is longer than the standard electrodes.

    Function pH Redox / mV Temperature
    Range 0.00 ÷ 14.00 pH ± 1999 mV -50.0 ÷ 199.9 °C
    Resolution 0.01 pH 1 mV 0.1 °C
    Accuracy (± 1 digit) ±0.01 pH* ±1 mV* ±0.1 °C**
    Input impedance >1012Ω >1012Ω -
    Temperature compensation -5 ÷ 110 °C - -
    Power supply 9 V battery, 12 V / 100 mA power adapter (option)
    Weight 210 g
    Dimensions (mm) L = 149, W = 82, H = 22
    * The accuracy of the meter only.
    ** The accuracy of the meter only. The total error includes the meters and probe’s accuracy. In the range 0 ÷ 100 °C the acceptable error of the probe with Pt-1000B resistor: ±0.8 °C, with Pt-1000A resistor: ± 0.35 °C.