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Products > Measurement > Thermometers and Hygrometers > RS485 (TQS) > THT2 I Interior thermometer and hygrometer >

THT2 I: Interior thermometer and hygrometer

Product code: THT2I
Warranty: 3 years
VAT: 21%
Price inc VAT: 94.38 €
Price ex VAT: 78 €
THT2I in box


Sensor for temperature and humidity with dew point calculation. Comunication via RS485 line. Plastic enclosure with vent holes for interiors. To be mounted on wall or ceiling.

THT2I is an intelligent digital sensor for temperature and/or humidity measurement. Humidity is measured in percent, temperature in degrees Celsius or Fahrenheit, dew point is calculated in degrees celsius as well. Ultra low energy consumption design allows you to create a network of sensors (up to 31 un single line) up to 1.2 km.


  • Measures relative humidity in range 0 % to 100 %
  • Measures temperature in range -40°C to +125 °C (however due to the PVC enclosure the maximum ambient temperature is 70°C)
  • Calculates dew point
  • Calulates temperatures in several units (°C, °F, K)
  • Extreme values memory – THT2I saves maximum and minimum measured-out values of each quantity.
  • RS485 communication
  • Spinel and ModBus RTU protocols are supported
  • Ultra low power consumption design
  • Unstabilised power compatible
  • PC software: Wix
  • Connection to PC: Any RS485 converter.
    Tip: There is also sensor like THT2I that connects directly to Ethernet - TH2E.
    THT2 connection topology - direct and through Ethernet converter

    Example of the THT2 topology - direct and over Ethernet

How do I measure temperature, humidity and dew point? 

Windows software:
Our univesal software Wix can work with THT2I, it can display, save an dmonitor measured-out values.

Other system integration:
Current temperature, humidity and dew point are easily readable via RS485 line. THT2I can communicate via Spinel or ModBus RTU protocols. That is to cover common requirements for higher systems integration (PCs and PLCs). If you need to integrate THT2I to your specific system, we are here to help you. In chuch case, do not hesitate to contact us.





Datasheet / Manual for intelligent sensors THT2.

File size: 1 MB

Date: 07-02-2018


tht-modbus-rtu.pdfModbus RTU protocol documentation

Complete protocol documentation for MODBUS in THT/THT2 sensors.

File size: 426 kB

Date: 08-08-2018


sw-modbus-configurator.zipModbus Configurator

Software designed for switching communication protocols in our devices, primarily between Spinel and Modbus RTU. Version
ModbusConfigurator homepage...

File size: 666 kB

Date: 05-27-2019


Searching utility. This will search your RS485 line and find all devices with Spinel protocol you have connected. It can also switch TQS3 to TQS1 mode and vice versa.

File size: 506 kB

Date: 03-11-2011


Simple utility to set-up address and communication speed of your devices with Spinel protocol. Version 2.0 with added features and functions

File size: 339 kB

Date: 06-22-2017


Wix - Free version of measurement software, version
Software for measurement, storing values, controlling and viewing measured-out values from Papouch s.r.o. devices (or others if integrated with for example MODBUS).
(Restrictions in the free version can be removed by purchasing a license.)
Go to Wix main page...

File size: 3.1 MB

Date: 06-12-2019


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