testo 623

  • testo 623
  • testo 623
  • testo 623
  • testo 623
  • testo 623
  • testo 623
testo 623 hygrometer with history function of the measurement values, incl. batteries, manual and attachment material
Part #: 0560 6230


The new temperature and humidity measuring instrument testo 623 shows current and past temperature and humidity values in a large clear display. This makes an analysis of the current and past ambient conditions possible, directly on site and without time-consuming analysis on a PC.

  • Histogram shows current and past temperature or humidity values.
  • Hanging and standing bracket allows felxible positioning on a wall or desktop
  • Analysis of past temperature and humidity values directly on site without evaluation on a PC
  • All important values at a glance: current and past temperature and humidity values as well as date and time
  • Large, optimally legible display

PC Software

  • ISO calibration certificate/analysis

    ISO calibration certificate/analysis

    # 0520 0019
    (for conductivity solutions; calibration point 1.413 mS/cm)

Storage temperature

-20 to +60 °C
Operating temperature                                 -10 to +60 °C

Battery life



240 g


185 x 105 x 36 mm
Probe type NTC
Meas. range                                                  -10 to +60 °C
Accuracy ±0.4 °C
Resolution 0.1 °C
Probe type humid. sensor, cap.
Meas. Range 0 to 100 %RH
Accuracy ±2 %RH at +25 °C (10 to 90 %RH)
±3 %RH (remaining range)
Resolution 0.1 %RH

Enquiry Form

Related products

  • Therma-Hygrometer


    Therma-Hygrometer - hygrometer thermometer with max/min & alarm functions
  • testo 608-H1

    testo 608-H1

    testo 608-H1 hygrometer, humidity/dew point/temperature measuring instrument with battery and manual
  • Nursery Thermometer

    Nursery Thermometer

    for monitoring a baby’s room temperature