Testo 623 Hygrometer 

 
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
Curve display of the last 90 days
 
Probe - NTC
Meas. range
  -10 to +60 °C
Accuracy
  ±0.4 °C
Resolution
  0.1 °C
Probe - 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
 
With calibration protocol, batteries and attachment material