OVERVIEW

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
Capacitie type
Full range temperature compensated
Relative humidity and temperature measure ment
Calibrated digital signal
Outstanding long-term stability
Long transmission distance, up to 100 meters
Low power consumption
4 pins packaged and fully interchangable

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 -40~80Celsius
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

PACKAGE INCLUDES

1 x DHT22 Temperature & Humidity Sensor