Thermo-hygrometer with external probe - Recorder *Step required

In production :  1 to 2 weeks
  • Temperature, humidity.
  • Data transferable to pc.
  • LCD backlight.
  • Simultaneous reading.
Unit price
267,32 €
Final price
267,32 €
Your configuration:

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The thermometer (hygrometer) is designed for measuring and recording data of temperature, relative humidity in internal non-volatile memory.

The free PC program allows you to transfer the data saved on your computer for evaluation.

LCD backlight.

The data logger is connected to the PC via an included USB cable only for transferring data from memory.

During the connection with the PC, no measurement and recording is activated.

Simultaneous temperature and relative humidity reading, selectable dew point temperature reading, external temperature-humidity probe with 1 meter cable.

Cable lengths of 2 and 4 meters are available as an option.

The diameter of the probe is 18 mm and its length is 135 mm.


  • D3121
  • Manual
  • Traceable calibration certificate
  • 9V battery
  • Mini USB cable
  • Plastic transport case
  • Self-adhesive dual lock for easy installation
  • FREE COMET Vision analysis software



Relative humidity

Operating temperature range: -10 to + 60 ° C

Temperature sensor : RTD Ni1000 / 6180ppm

Accuracy of temperature measurement with integrated sensor: ± 0.4 ° C

Accuracy of air humidity measurement: ± 2,5% RH from 5 to 95% at 23 ° C, resolution 0,1%

Dew point measurement accuracy: 1,5 ° C at room temperature <25 ° C and RH> 30%, range -50 to +80 ° C

Power : 9V batteries

Battery life: 4 months on average

Real time clock: year, leap year, month, day, hour, minute, second

PC interface: USB

Sampling interval in data logging mode: 10 to 24 hours (18 adjustable intervals)

Total memory capacity: up to 16 recorded values

Data logging modes: non-cyclic - data logging stops after filling the memory
cyclic - after filling the memory, the oldest data is overwritten by the new ones

dimensions: 141 x 71 x 27 mm, probe length 135 mm, probe diameter 18 mm

IP protection: IP20

Weight (with battery) without probe: about 150g

Warranty: 3 years 


Product Type
Data loggers
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