
A robust transmitter for temperature and humidity measurement with 4–20 mA outputs for industrial and weather applications.
| Datasheet |
Product Description
The HD9008TRR Temperature & Humidity Transmitter is a reliable solution for measuring relative humidity and temperature in environmental, industrial, and meteorological applications.
It features a capacitive humidity sensor and Pt100 temperature sensor, providing accurate and stable measurements across the full 0–100% RH and -40 to +80°C range. The dual 4–20 mA outputs enable easy integration into PLCs, data loggers, and control systems.
Designed for outdoor and demanding environments, the transmitter offers IP65 protection, low power consumption, and stable long-term performance. It can be installed with solar radiation shields (e.g. HD9007-A1) for weather station use, ensuring reliable measurements under varying environmental conditions.
The typical temperature measurement accuracy is ±0.2 °C and the typical humidity measurement accuracy is ±1.5%RH.
Shown below is a photo of the HD9008T7AC (a variant of HD9008TRR and it measures temperature only):

Shown below are some photos of the HD9008TRR transmitters installed with a solar radiation shield:



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Additional information
| Power supply | 10-30 VDC |
| Output | 4-20 mA |




