Digital Humidity and Temperature Module - HYT 221

• ​Calibrated and temperature compensated
• ​Excellent humidity/temperature accuracy and stability
• ​High chemical resistance
• ​I2C protocol (address 0x28 or alternative address)
• ​Wide humidity and temperature range (0 % RH to 100 % RH and -40 °C to +125 °C)

  • Model Number: HYT 221
  • Data Sheet: Date Sheet File
Quantity:
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  • Digital Humidity and Temperature Module
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Product Specification

Further advantages of the HYT 221 digital humidity module include:

• Calibrated and temperature compensated

• Excellent humidity/temperature accuracy and stability

• High chemical resistance

• I2C protocol (address 0x28 or alternative address)

• Wide humidity and temperature range (0 % RH to 100 % RH and -40 °C to +125 °C)

• Very low drift

• Very stable at high humidity

• Interchangeable without adjustments

 The IST AG digital HYT 221 humidity module is suitable for various meteorology, industrial drying systems, medical devices and agriculture applications.

 

Technical Data:

Operating temperature range

-40to +125

Operating humidity range

0 % RH to 100 % RH

Hysteresis

< ±1 % RH

Linearity error

< ±1 % RH

Temperature error

0.05 % RH/K (0to +60)

Operating voltage

2.7 V to 5.5 V

Current consumption (nominal)

< 22 µA at 1 Hz measuring rate; 850 µA max.

Current consumption (sleep)

< 1 µA

Digital interface

I2C, address 0x28 or alternative address

Operating voltage (limits)

-0.3 V to 6 V

Storage condition

-20to +50

 

Humidity

Temperature

Accuracy

±1.8 % RH at +23(0 % RH to 90 % RH)

±0.2 K (0to +60)

Reproducibility

±0.2 % RH

±0.1 K

Resolution

0.02 % RH

0.015

Response time t63

< 10 s with membrane filter

< 10 s with membrane filter

Long-term drift

< 0.5 % RH/a

< 0.05 K/a

Measuring principle

Capacitive polymer humidity sensor

PTAT (integrated)

 

Further advantages of the IST AG HYT LabKit include:

• Dew/frost point calculation and further humidity parameters

• Plug-in connection adapter included

• Evaluation software RECORDER and PCLOG for Windows included

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