Thermo-hygrometer recorder for measuring compressed air *Step required

  • Temperature, humidity.
  • Data transferable to pc.
  • Probe diameter: 18 mm.
Unit price
389,54 €
Final price
389,54 €
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Thermometer, hygrometer is designed for the measurement and recording of temperature, relative humidity of compressed air up to 25 bar with 1 m of cable in the internal non-volatile memory.

The free PC program allows the recorded data to be transferred to the computer for evaluation.

LCD backlight.

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

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

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

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

The diameter of the probe is 18 mm, length 135 mm.


  • D3121P
  • Manual
  • Traceable calibration certificate
  • 9V battery
  • Mini USB cable
  • Plastic transport case
  • Self-adhesive dual lock for easy installation
  • FREE 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 temperature range: -50 to +80 ° C

Dew point temperature accuracy (for more details see user manual): ± 1,5 ° C for the dew point + 10 ° C and more at room temperature + 25 ° C

Dew point temperature accuracy: ± 2,0 ° C for dew point temperature 0 ° C at room temperature + 25 ° C

Dew point temperature accuracy: ± 3,0 ° C for dew point temperature -10 ° C at room temperature + 25 ° C

Dew point temperature accuracy: ± 6,0 ° C for dew point temperature -20 ° C at room temperature + 25 ° C

Supply : 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 150 mm, probe diameter 18 mm

IP protection: Instrument IP20, probe IP40 T + RH

Mechanical connection of the probe: G1 / 2 with O-ring

Probe cable length: 1m, 2m or 4m optional

Weight with battery without probe: approximately 150 g

Warranty: 3 years 



Product Type
Data loggers
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