The Series 657 Relative Humidity/Temperature Transmitters provide two
4-20 mA channels to produce separate output signals for both relative humidity
and temperature. These devices deliver ±2% accuracy for humidity and +-1 degree F for
temperature measurements. Stainless steel probe can be easily mounted to most
ductwork using either of the two optional kits below.
Features:- Polymer film humidity and thin film RTD temperature sensors offer highly reliable and
stable measurements.
- Remote mount housing offers installation flexibility (657-1)
- Rugged die-cast aluminum housing is great for industrial applications (657C-1)