2

Sensor Enclosure

The relative humidity and temperature sensors are

housed in heavy duty, compact, locking enclosures.

Enclosures may be removed and painted, which further

helps blend them into any environment.

Sensor

The RH sensor incorporates a bulk polymer resistive

element. The polymer is impervious to most

contaminants and, since it is a bulk resistance device,

surface contamination such as dust will not alter the

accuracy of the readings. Imbedded in the polymer is

an interdigitated grid which senses resistance change

as the polymer absorbs or emits molecules of water.

Transmitter

The electronics are contained in a rugged pressure-

cast aluminum weatherproof housing designed

for maximum protection. Continuous temperature

compensation adjusts for temperature-induced change

in the RH sensor output. The compensation provides

high measurement accuracy over the entire operating

range of the instrument.

Mounting Template

RH and RHT Duct Mount