EHRH

Waterproof RH Transmitter

The EHRH Relative Humidity Transmitter is a waterproof

RH sensing element and package which is ideally

suited for monitoring relative humidity in high RH/harsh

environment applications or where washdowns are

required. The unit is designed for continuous monitoring

of relative humidity and temperature and is available in

±2% accuracy.

Both the sensor and electronics are contained in an

epoxy-hardened enclosure designed for continuous

service. A water-tight membrane filter is installed over

the RH sensor for increased protection against high RH,

contaminants and washdowns. The unit is designed to

withstand 100% saturation.

The sensor incorporates a bulk polymer resistance

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.

The unit is provided with continuous temperature

compensation which adjusts for temperature-induced

change in the RH sensor output. The compensation

provides high measurement accuracy over the entire

operating range of the instrument.

Features

• Waterproof sensing element and housing

• Compact transmitter with built-in sensor

• Bulk polymer resistance RH sensor

• Resistant to contamination

• Thermistor temperature measurement

• Temperature compensation

Applications

• Greenhouses

• Textile mills

• Food processing

• Shipping containers

• Swimming pools

• Hospital suites

Amphenol

Advanced Sensors

®