HYT 221 is a 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 in an assembly that is splash waterproof and enables a sealed housing construction while providing high dynamic 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 waterproof 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
| Parameter | Value |
|---|---|
| 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