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TeraCom TSH202


TeraCom TSH202 is humidity and temperature sensors with a 1-Wire interface. The device integrates basic elements plus signals processing, and provides a fully calibrated digital output. A unique capacitive element is used for measuring relative humidity while the temperature is measured by a band gap sensor. Both sensors are seamlessly coupled to a 12-bit analog to digital converter. This results in superior signal quality and fast response time.


  • Server room and data centers monitoring.
  • Environmental quality monitoring and assessment.
  • Humidity and temperature monitoring in building management systems.
  • Humidity and temperature monitoring for mobile operator facilities, vineyards, greenhouses, etc.

Technical parameters

Interface 1-Wire Interface
Wiring White = 1-wire signal, Red = 1-wire power, Black = Ground
* Operating temperature -20 ºC to +60 ºC
* Operating humidity 10 to 90%RH
Tolerance typ. ±3.0 %RH (20 to 80 %RH), ±0.4 °C (-10 to +60°C)
Tolerance max. ±5.0 %RH (10 to 90) %RH, ±1.0 °C (-20 to +60°C)
Power supply/consumption 4.0 to 5.5 VDC, 5 mA
Dimensions 45 x 16 x 10
Cable length 1 m

* Recommended operating range is 20% to 80% RH (non-condensing) over -10°C to +60°C.

Prolonged operation beyond these ranges may result in a shift of sensor reading, with slow recovery time.


  • TSH202 will be connected with FM devices via 1-wire interface.
  • To connect the 1-wire TSH202 sensor you have to make sure to connect 3 PINs of the sensor to the PINs of your device correctly.

TSH202 Scheme.PNG

FMB120-2x6 socket pinout
FMC130-2x6 socket pinout


We tested TSH202 sensor with FMB120 & FMC130 devices and connections will be as per following sequence.

TSH202 wire color Connections
Red +VDD (+4.0 to +5.5V) 1-wire power of FM device
White 1-wire signal of FM device
Black Ground of FM device


  1. Use Firmware ver.03.27.13.Rev.480.e and above.
  2. Use Teltonika.Configurator_1.7.30_E.THS202_R.4 and above.

With FMB120:

With FMC130:

* The used Firmware is tested with TSH202v3 model.

Demonstration in Flespi platform

Flespi: Open Flespi application → Select Device → Select Logs & Messages → Select the record interval → Tap to see all information.

With FMB120:

With FMC130:


Manual & Documentation

Pdf icon.png 1-Wire humidity and temperature sensor TSH202 brochure(v1.10)