Humidity Probes

Designed for building air conditioning applications, this humidity and temperature transmitter is available in wall or duct versions with a long-term stable humidity sensor. Additionally, two analog outputs cover temperature and humidity, and P2A software supports parameterization, adjustment, and analysis. It suits both room and duct installations, with an optional 2-line LCD display.

Designed for greenhouses and laboratories, this humidity and temperature transmitter monitors critical climates for biological research with a long-term stable humidity sensor rated at ±2.5% RH. Additionally, an integrated ventilator directs airflow onto the sensor for an averaged climate reading. Its housing integrates the probe to protect electronics from moisture.

Testo 6651 humidity/temperature transmitter for critical climate, accuracy up to ±1.7 %RH (depends on the probe), 4 to 20mA(2 wire, 24VDC) no relays or ethernet, no display, no ethernet module, no relay, 2 analog outputs.

In industrial processes or in research-based business, the Testo 6681 temperature and humidity transmitter is ideal wherever critical climatic values need to be maintained.