DHT22 (AM2302) Temperature and Humidity Sensor Module

About this product

High-precision digital temperature and humidity sensor with calibrated single-wire output. Uses capacitive humidity sensing and thermistor with superior accuracy. Suited for weather stations, data logging, and precision environmental monitoring.

Ultrasonic, IR, temperature, humidity, motion, current, camera and RF sensor modules - plus relay, logic-level and breakout boards for prototyping and production.

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Specifications

Operating Voltage

3.3V to 6V DC

Temperature Range

-40°C to 80°C

Temperature Accuracy

±0.5°C

Humidity Range

0% to 100% RH

Humidity Accuracy

±2% RH

Interface

Single-wire digital output

Sampling Rate

0.5 Hz (once per 2 seconds)

Package

4-pin with 0.1" spacing