Digital Temperature Sensor / Humidity Sensor AM2302 DHT22 Sensor Module For Arduino electronic DIY
Digital Temperature Sensor / Humidity Sensor AM2302 DHT22 Sensor Module For Arduino electronic DIY
The AM2302 DHT22 Digital Temperature and Humidity Sensor Module is a compact, calibrated unit designed for Arduino and electronic DIY projects, delivering reliable digital readings for both temperature and humidity.
Overview
The AM2302 Humidity Capacitance Digital Temperature and Humidity Module combines a capacitive humidity sensor with a precise temperature element and an onboard microcontroller. It outputs a calibrated digital signal, enabling fast, interference-resistant readings for Arduino and other microcontroller projects. A dedicated digital acquisition pathway and internal calibration data provide stable long‑term performance. The 3‑pin, single‑bus interface simplifies wiring and integration, while the ultra-compact 40 × 23 mm package and light 4 g weight suit compact enclosures. With 5 V operation and a transmission range claimed up to 20 meters or more, this module is designed for demanding environments. Packaging options can be tailored to your needs.
Key features
- Calibrated humidity readings with coefficients stored in the microcontroller for precise results
- Capacitive humidity sensing element delivering stable, long‑term performance
- Ultra‑low energy consumption paired with a standard digital single‑bus output for easy integration
- Digital bi‑directional single‑bus interface simplifies connections to microcontrollers
- Ultra‑fast response with strong anti‑interference characteristics
- Compact form factor (40 × 23 mm) and lightweight (≈4 g) with 5 V operation
- Signal transmission distance up to 20 meters or more
Technical specifications
- Size: 40 × 23 mm
- Weight: ≈ 4 g
- Voltage: 5 V
- Output: Digital bi‑directional single‑bus
- Temperature range: −40 to 80 °C, ±0.5 °C
- Humidity range: 20–90% RH, ±2% RH
- Ports: 3‑pin single‑bus interface
Applications
- HVAC systems
- Humidifiers
- Test and inspection equipment
- Consumer goods
- Automobiles
- Automatic control
- Data loggers
- Household appliances
- Humidity regulators
- Medical devices
- Weather stations
- Other related humidity detection controls
Special packaging can be provided according to user needs.
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