AM2302 is an output calibrated digital signal humidity sensor. It applies 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 program 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 and applications:
- High precision
- Capacitive type
- Full range temperature compensated
- Relative humidity and temperature measurement
- Calibrated digital signal
- Outstanding long-term stability
- Extra components not needed
- Long transmission distance, up to 100 meters
- Low power consumption
- 4 pins packaged and fully interchangeable
|Humidity detection range||20 to 95%|
|Humidity detection accuracy||± 3% (25 °C, 40 to 80%)|
|Power supply voltage||3.3-5.5V DC|
|Operating voltage range||85% to 110% of power supply voltage|
|Current consumption||10 mA max.|
|Humidity output||1 to 5 V (for humidity of 0% to 100%)
Permissible load impedance: 100 kΩ min.
(Use a 1:1 connection when connecting to an E5CC/E5EC/E5AC.)
|Output signal||digital signal via 1-wire bus|
|Sensing element||Polymer humidity capacitor|
|Operating range||humidity 0-100%RH|
|Accuracy||humidity +-2%RH(Max +-5%RH)|