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Model EE21
Wall & Duct Mount


  • greenhouses
  • livestock & poultry
  • mushroom farming
  • incubators


Key Features

  • 0 - 100% RH
  • NEMA4/IP65 enclosure (wash down safe)
  • wettable sensor
  • excellent long tern stability
  • replicable sensor element
  • durable sensor resists chlorine and ammonia environments
  • Now also available with LonWorks® communication capability as a LonMark® Certified product.



  • Humidity or Humidity & Temp
  • 0-1 V, 0-5 V, 0-10 V, 4-20 mA
  • 2" and 8" probe lengths
  • snap in base and cable connection
  • harsh environment sensor coating
  • variety of filter caps
    • metal grid
    • sintered bronze
    • stainless steel
    • PTF

Model EE21

Wall and Duct Mount Humidity And Temperature Transmitter

  • Analog Output Versions: 0-1V, 0-5V / 0-10V, 4-20 mA
  • Measurement Range: 0...100% RH; -40...60 C
  • Accuracy: 2% RH; 0.36F (0.2C)
  • Power: 24 VACDC
  • Two point calibration capability
  • Environmental coating option for sensor to protect in harsh environments.
  • Special calibration available for high humidity applications (persistent operation >90% RH)
  • Radiation Shield Available for Outdoor Mounting (PN: HA010501)


Radiation Shield for Outside Air Monitoring

EE071 Modbus RTU (RS485) Probe with Dew Point And Temperature Output

  • Stand alone probe with integrated calibration and built in psychometric calculations for dew point and other moisture variables.
  • Suitable for outside air monitoring with recommended optional radiation shield (PN: HA010502)
  • Sensor is configurable via a PC interface with connecting cable (PN:HA011001).
  • Sensor is coated for environmental protection against salt air, pollution and other harsh chemicals.
  • Measurement Range: 0...100% RF, -40...80C
  • Output: digital Modbus RTU
  • Accuracy: 2%RH (0...90%RH), 3%RH (90...100%RH); Temp 0,2C at 20C
  • Power: 4...18 VDC

EE071 Datasheet
EE071 Modbus Application Note
EE071 Configuration Software

EE06/EE061 Analog Humidity And Temperature Probes

  • The EE06 provides a voltage output signal of 0-1.0V.
  • The EE061 provides a 4-20 mA current signal.
  • A passive temperature output signal is available for both versions.
  • The voltage version can be ordered also with an active output.
  • The probe operates over a wide temperature and supply voltage ranges.
  • The probe also has excellent long term stability
  • Optional sensor coating allows the sensor to operate in environments usually unfriendly to humidity sensors. (e.g. exposure to salt air, ammonia, chlorine and condensing environments).

EE06 Datasheet
EE06 Manual
EE061 Manual
Published: February 16, 2004 Last Updated: May 15, 2013