DHT22 Temperature/Humidity Sensor
DHT22 output calibrated digital signal. It utilizes exclusive digital-signal-collecting-technique and humidity sensing technology, assuring its reliability and stability. Its sensing elements is connected with 8-bit single-chip computer.
Every sensor of this model is temperature compensated and calibrated in accurate calibration chamber and the calibration-coefficient is saved in OTP memory.
Small size & low consumption & long transmission distance(20m) enable DHT22 to be suited in all kinds of harsh application occasions. Single-row packaged with four pins, making the connection very convenient
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Specifications |
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Sensor |
DHT22 |
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Power supply |
3.3 - 6V DC
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Accuracy resolutiuon |
0.1 |
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Humidity Measuring |
0-100%RH |
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Temperature Measuring
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-40*C +125*C
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Sensing period |
Average: 2s
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Dimensions (case) |
15*25*7.7mm |
