Humidity Sensors

Take Control of your Commercial HVAC System with Dependable Humidity Sensors

Johnson Controls provides a range of control sensors to suit your facility.

 

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

HE 88xx Humidity Sensor

The Next Generation of Relative Humidity Sensors

 

Humidity Sensors and Temperature Sensors — HE-68XX SERIES

The HE-6800 Series Humidity Transmitters with temperature sensor provide humidity and temperature sensing in room wall-mount applications. As well as improving your energy efficiency, features of the HE-68XX include:

 

  • TRUERH ±2 or 3% RH humidity accuracy options with all-polymer sensor and a 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
  • Global Enclosure design with optional warmer/cooler dial for temperature adjustments from set point


Wall Mount HE-6800:

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Humidity and Temperature Sensors — 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.

 

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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.

 

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Surface Duct Mount – for locating sensors inside ducts and rooftop economizers. 1.0k, 2.2k and 10k ohm reference resistance.

 

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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

 

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Outdoor Relative Humidity Transmitter

  • 0-100 % humidity range with optional temperature sensor
  • Multi-plate 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

 

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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

 

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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

 

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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

 

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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