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Humidity Sensors

Humidity Sensors
Humidity Sensors
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Product Code : 06
Product Description

Humidity Sensors :

Detect Humidity within an Accuracy of ±3% in a Compact Body. Controller Set Provides Superior Humidity Control and Temperature/Humidity Control.

List of Sensor Models

Name Model
Humidity Sensor ES2-HB
Temperature/Humidity Sensor ES2-THB
Humidity Sensor Module ES2-M

Sensor Specifications

Humidity Sensor section High-polymer resistive
Humidity detection range 20 to 95%
Humidity detection accuracy ± 3% (25oC, 40 to 80%)
Power supply voltage 24 VDC (See note 1.)
Operating voltage range 85% to 110% of power supply voltage
Current consumption 10 mA max.
Humidity output 1 to 5 V (for humidity of 0% to 100%)
Permissible load impedance: 100 k min.
(Use a 1:1 connection when connecting to an E5[]K.)
Temperature Sensor Section (See note 2.) Platinum resistance thermometer
Temperature detection range 0 to 55oC
Temperature output Pt100: 3 wire
Class JIS class B
Communications cable length 5 m
Operating temperature and humidity range (See note 3.) 0 to 55oC, humidity of 95% max.
Storage temperature and humidity range (See note 3.) - 20 to 60oC, humidity of 95% max.
Degree of protection IP 20 equivalent
Weight ES2-HB: Approx. 41 g (excluding cables)
ES2-THB: Approx. 43 g (excluding cables)


1.The maximum ripple voltage of 2% p-p max. The recommended power supply is the OMRON S82K.
2.ES2-THB only.
3.Do not use or store the Sensor for an extended period at a humidity of 90% or more.
4.Pt100 (JIS C 1604-1989) is used for the measuring elements. Set Pt100 for input sensor type of the Temperature Controller.

Important Tips for Usage

  • Do not use the product in the following locations:
  • Locations subject to water splashing or oil contact
  • Locations subject to dust or corrosive gases
  • Locations subject to icing or condensation
  • Locations subject to direct sunlight