Temperature & Humidity Transmitter


This transmitter is an excellent solution for those who need to monitor humidity and temperature.


Humidity is measured by a capacitive sensor made of a hygroscopic polymer. The sensor works by detecting changes in the dielectric constant, which is directly proportional to the relative humidity of the surrounding environment. The advantages of this type of sensor include insensitivity to temperature changes, quick response time and durability.

The temperature sensor is a platinum resistance thermometer (100Ω at 0°C). The Pt100 resistance variation is transformed into a current or voltage signal linear to temperature.

Product Specifications

Humidity Sensor Type Capacitive Hygroscopic Polymer
Humidity Measuring Range 0 – 100% RH
Humidity Accuracy ±15% (0 – 90% RH)
Humidity Sensor Working Temperature -40°C to +60°C
Hysterisis and Repeatability 0.4% RH
Long Term Stability 1%/ year
Response Time at 63% of final variation 3 minutes with filter/ 6 seconds without filter
Temperature Sensor Type 4 wire Pt 100 1/3 DIN
Temperature Measuring Range -40°C to +60°C
Temperature Accuracy ±0.15°C, ±0.1% of measurement
Temperature Stability 0.2°C/ year
Outputs Analogue: 4-20 mA; Digital: RS232 or RS485 MODBUS RTU
Power Supply 10 – 40 VDC
Consumption 2 mA
Environmental Protection Rating IP65


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