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DHT22 Temperature & Humidity Sensor Module
- Supply Voltage: 5V
- Temperature Range: -40°C to 80°C
- Temperature Resolution: 0.1°C
- Temperature Accuracy: < ±0.5°C
- Humidity Range: 0–100% RH
- Humidity Resolution: 0.1% RH
- Humidity Accuracy: ±2% RH
- Interface Pins: VCC, GND, S
- Module Size: 38 × 20 mm
SKU:
SE-415
Categories: Sensor Modules, Temperature & Humidity Sensor
Tags: Humidity Sensor, Temperature Sensor
Description
- The DHT22 is a high-precision digital sensor designed for accurate temperature and humidity measurement.
- Widely used in weather stations, climate control systems, smart homes, and environmental monitoring projects.
- Provides digital output, allowing easy interfacing with microcontrollers including Arduino, Raspberry Pi, ESP32, and ESP8266.
- Offers superior accuracy compared to the DHT11, with ±0.5°C temperature accuracy and ±2%RH humidity accuracy.
- Features 0.1-level resolution for both temperature and humidity, ideal for detailed monitoring applications.
- Operates on 3.3V to 6V and consumes only about 1mA during measurement, making it suitable for low-power applications.
- Uses a single-wire communication protocol, simplifying circuit connections.
- Typical response time is approximately 2 seconds, ensuring reliable real-time environmental readings.
- Usually integrated into a compact PCB mount for easy connectivity and stable operation.
PACKAGE INCLUDES:
- 1 × DHT22 Sensor
- 1 × Analog Sensor Cable
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Applications
- Weather Stations
- Climate Control Systems
- Indoor Air Quality Monitoring
- Greenhouses
- Smart Home Automation
- Data Logging Devices
- DIY Electronics Projects
- Industrial Environment Monitoring
- Health and Comfort Monitoring
- Educational and Research Projects
TECHNICAL SPECIFICATIONS
| Specification | Value |
| Input Voltage | 5V |
| Wiring Map | VCC, GND, S |
| Operating Temperature | -40°C to 80°C |
| Humidity Range | 0–100% RH |
| Temperature Resolution | 0.1°C |
| Humidity Resolution | 0.1% RH |
| Temperature Accuracy | < ±0.5°C |
| Humidity Accuracy | ±2% RH |
| Sensor Dimensions | 38 × 20 mm |
| Shipping Weight | 0.02 kg |
| Shipping Dimensions | 6 × 3 × 1 cm |
Datasheet

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