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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.
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.
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.
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.
