Digital Humidity Sensors

HYT 221 Splash-Proof Digital Humidity Element

HYT 221 is digital humidity element in a round stainless steel casing which can be easily fitted into housing openings and can be sealed against the wall with the use of an O-ring. In combination with the waterproof membrane filter, it results into an asembly that is splash water proof and enables a sealed housing construction while providing a high dyanmic responsiveness.

Like all products in the Hygrochip line, integrated signal processing and I2C compatible interface is standard. Outstanding accuracy with on chip calibration and excellent resistance to chemicals and dew formation is part of this model.

Features

  • Measurement range of 0 to 100% rH, -40°C to 125°C
  • Accuracy ±1.8% rH and ±0.2°C (HYT 271-H)
  • I2C interface
  • Splash water proof with protection filter
  • High chemical resistance
  • Dew formation resistant
  • Low operating voltage of 2.7 to 5.5V
  • Miniature construction of 5 x 7 mm
  • SIL-connections, plug-in type
  • RoHS conformance

Technical Features

ParameterValue
Measuring Principle: Capacitive polymer humidity sensor
Humidity Range: 0-100% relative humidity
Humidity Accuracy:

±1.8% rH

Humidity Resolution: 0.02% rH
Temperature Measurement Range: -40 to +125°C
Temperature Accuracy: ±0.2°C
Temperature Resolution 0.015°C
Hysteresis: ±1% rh
Response Time: less than 12 sec
Digital Interface: I2C, Address0x28 Alternative address
Dimensions: 15.3 x 10.2 x 5.3 mm
Connection: SIL, plug-in type, RM 1.27 mm
Meets RoHS conformity: Yes

Applications

  • Meteorology
  • Industrial drying systems
  • Medical devices
  • Aviation
  • Extreme sports equipment

Properties

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