Temperature and Humidity Sensor - DHT22
AM2302 output calibrated digital signal. It applys 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 type of programme in OTP memory, when the sensor is detecting, it will cite coefficient from memory.
Small size & low consumption & long transmission distance(100m) enable AM2302 to be suited in all kinds of harsh application occasions. Single-row packaged with four pins, making the connection very convenient.
FEATURES
- High precision
- Capacitive type
- Full range temperature compensated
- Relative humidity and temperature measurement
- Calibrated digital signal
- Outstanding long-term stability
- Long transmission distance, up to 100 meters
- Low power consumption
SPECIFICATION
- Model: AM2302
- Power supply: 3.3-5.5V DC
- Output signal: Digital signal via 1-wire bus
- Sensing element: Polymer humidity capacitor
- Operating range: Humidity 0-100%RH; temperature -40~80 Celsius
- Accuracy : Humidity +/-2%RH(Max +-5%RH); temperature +/-0.5Celsius
- Resolution or sensitivity : Humidity 0.1%RH; temperature 0.1Celsius
- Repeatability : Humidity +/-1%RH; temperature +-0.2Celsius
- Humidity hysteresis: +/-0.3%RH
- Long-term Stability: +/-0.5%RH/year
- Interchangeability: Fully interchangeable
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Tags: Humidity, Temperature, DHT22, Sensor temperature, and, humidity, sensor, dht22