D3120 Thermo-hygrometer (-10 a +60°C) (5 a 95%RH)


Comet System


Thermometer, hygrometer is designed for measurement and datalogging of temperature, relative humidity into the internal non-volatile memory. Free PC program enables to transfer recorded data via RS232 serial link to the computer for evaluation. Data logger is connected to the PC through included communication cable only for data trasfer from the memory. During connection with the PC no measurement and record is enabled.

Simultaneous reading of temperature and relative humidity, dew point temperature reading selectable, built-in sensors.


229,00 €

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Included in delivery:

Instrument including the battery

  • Traceable calibration certificate
  • Instruction manual
  • Plastic transport case
  • PC communication cable
  • Self adhesive Dual Lock for easy installation
  • Free basic Windows software is ready to download at folder
Measured Value Relative Humidity + Temperature
Construction Type Ambient Air
Temperature Measuring Range -10 to +60°C
Data Logging Function Yes
Operating temperature range -10 to +60°C
Temperature sensor RTD Ni1000/6180ppm
Accuracy of temperature measurement with built-in sensor ±0.4°C

Accuracy of air humidity measurement


±2.5%RH from 5 to 95% at 23°C, resolution 0.1%
Accuracy of dew point measurement 1.5 °C at ambient T < 25°C and RH>30%, 
range -60 to +80 °C
Power battery 9V
Battery life 4 months typically

Real time clock


year, leap year, month, day, hour, minute, second
PC interface serial RS232
Sampling interval in data logging mode 10s to 24hours (18 adjustable intervals)
Total memory capacity up to 16000 recorded values

Data logging modes


noncyclic - data logging stops after filling the memory
cyclic - after filling memory oldest data is overwritten by new
Dimensions 141 x 71 x 27 mm
IP protection IP20
Weight including battery approximately 150 g
Warranty 2 years
ac/dc adapter 230Vac to 12Vdc/0.5A
code: A1515
ac/dc adapter 230Vac to 12Vdc/0.5A
NiMH rechargeable batt. 9V/200mAh
code: A3400
NiMH rechargeable batt. 9V/200mAh
Transducer USB/RS232 complete
code: MP006
Transducer USB/RS232 complete
Communication cable for COMMETER Dxxxx
code: QLOG015
Communication cable for COMMETER Dxxxx

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