DHT22 Digital Temperature & Humidity Sensors Module
KSH 500.00
In Stock
The DHT22 is a high-quality digital temperature and humidity sensor, often sold as the AM2302 module. It provides superior accuracy and a wider measurement range than the popular DHT11, making it suitable for reliable environmental monitoring in weather stations and HVAC projects [citation:1][citation:6][citation:11].
| Parameter | Value |
|---|---|
| :- | :- |
| Supply Voltage | 3.3V to 5.5V [citation:1][citation:2] |
| Temperature Range | -40°C to +80°C [citation:1][citation:11] |
| Temperature Accuracy | ±0.5°C [citation:1][citation:11] |
| Humidity Range | 0 to 100% RH [citation:1][citation:2] |
| Humidity Accuracy | ±2% RH [citation:1][citation:2] |
| Sampling Rate | 0.5 Hz (once every 2 seconds) [citation:6][citation:11] |
| Output Signal | Digital (Single-Bus) [citation:1][citation:6] |
The sensor incorporates a capacitive humidity sensing element and a thermistor [citation:6][citation:11]. The module often includes the necessary pull-up resistor for easy integration [citation:6][citation:11]. For use with Arduino, connect VCC to 5V/3.3V, GND to ground, and the data pin to any digital I/O pin [citation:6][citation:11].
√ Compatible with Arduino, ESP32, and other microcontrollers [citation:1][citation:6].
√ Durable module format with long-term stability [citation:1][citation:2].
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