TrueRH™

The Next Generation of Relative Humidity Devices

All-Polymer™ sensor construction provides improved resistance to chemical corrosion. TrueRH™ patented circuitry and calibration process for True ±2 or 3% humidity sensing accuracy and reliability. All Plastic Enclosures eliminate thermal bias.
 

Humidity Transmitters

Humidity and Temperature Sensor — HE-67xx Series

  • TRUERH ±2 or 3% humidity accuracy options with all-polymer humidity sensor and plastic enclosure, measuring a range of 0 to 100% relative humidity
  • User-selectable humidity output of 0 to 10 VDC or 0 to 5 VDC

Standard Wall/Duct Mount - Available in thin-film platinum, silicon and nickel.

Metastat Wall Mount - 8-minute time response improves temperature control. LED and pushbutton to indicate that space is occupied or unoccupied for improved comfort and energy savings. Globally scaled with universal mounting.

Surface Duct Mount - Provides humidity and temperature sensing inside ducts and rooftop economizers. 1.0k, 2.2k and 10k ohm reference resistance.

Humidity Transmitter — HT-670x Series

  • TRUERH ±2 or 3% humidity accuracy options with all-polymer humidity sensor and plastic enclosure, measuring a range of 0 to 100% relative humidity
  • Jumper-selectable output signal of 4 to 20 mA or a 0 to 10 VDC
 

Outdoor Relative Humidity Transmitter

  • 0-100 % humidity range with optional temperature sensor
  • Multiplate shield protects sensor from solar radiation, condensation, precipitation and harsh weather conditions allowing more precise measurement and longer life
  • Mounting bracket included to move unit six inches away from building to reduce thermal biasing
  • Product Bulletin
  • Installation Bulletin
  • Catalog Page
 Outdoor Sensor

Humidity Controllers

Proportional Humidity Controller — HC-67x3 Series

  • TrueRH ±3% humidity accuracy with all-polymer humidity sensor and plastic enclosure
  • Jumper-selectable, reverse or direct acting 0 to 10 or 6 to 9 VDC output along with an adjustable setpoint and proportional band

Duct Humidistat — HH-6705 Series

  • TrueRH ±5% humidity accuracy with all-polymer humidity sensor and plastic enclosure
  • Turns humidifier off when setpoint is reached and on when it falls below 5%
  • 30-90% RH adjustable setpoint with a 5% fixed differential

Limiter of Duct Humidity — HL-67x5 Series

  • TrueRH ±5% humidity accuracy with all-polymer humidity and nickel temperature sensor as well as a plastic enclosure
  • Accurate control of duct humidity and reduces condensation
  • Adjustable RH setpoint and proportional band
  • Single-pole, Single-throw (SPST) with a normally open relay contact
 
TrueRH™ Certificate

All TrueRH™ ±2% Relative Humidity sensing products
ship with a NIST (National Institute of Standards and
Technology) "Certificate of Calibration Conformance." 		TrueRH™ ±2% Accuracy