DHT22 Digital Temperature & Humidity Sensor Module

The DHT22 Digital Temperature & Humidity sensor module measures air temperature and relative humidity and sends both readings over a single digital data wire. It has a wider range and better accuracy than the DHT11 and works with Arduino, ESP32, ESP8266 and Raspberry Pi using common libraries, which makes it a favourite for weather stations, greenhouses and room monitors.

DHT22 Digital Temperature & Humidity Specifications

• Sensor: DHT22 (AM2302)
• Supply voltage: 3.3–6 V DC
• Humidity range: 0–100% RH, accuracy ±2% RH (±5% maximum)
• Temperature range: −40 to 80 °C, accuracy ±0.5 °C
• Resolution: 0.1% RH and 0.1 °C
• Sampling rate: one reading every 2 seconds
• Interface: single-wire digital signal

DHT22 Digital Temperature & Humidity Applications

• Home weather stations and IoT climate monitors
• Greenhouses, incubators and mushroom growing rooms
• Room comfort and HVAC control
• Logging data to Google Sheets or MQTT with an ESP32
• Monitoring server rooms, storage areas and warehouses

What's in the Box

• 1 × DHT22 temperature and humidity sensor module

Tip: Read the sensor no more than once every 2 seconds, or it will return old or failed readings. Connect VCC, DATA and GND, and if your module has no onboard pull-up resistor, add 4.7–10 kΩ between DATA and VCC.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.