HF5-EX Two-channel transmitters


The new HygroFlex5-EX series is the latest development in two-channel transmitters for the exact measurement of humidity and temperature in explosive atmospheres. This device conforms to the latest international standards.

The HF5-EX series consists of a robust aluminum transmitter with or without display. The attached probes are cast into a stainless steel tube, and are certified for operation in Zone 0/20. The transmitter itself is certified for Zone 1/21. The intelligent design of the circuitry with electrical isolation permits the measuring system to be operated without an intrinsically safe power supply.


Measurement of relative humidity and temperature, optional output of dew point and other calculated parameters
Safe operation in areas with explosion risk
Intrinsically safe electrical construction
No intrinsically safe power supply required
Interchangeable stainless steel probes
Robust aluminum housing

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