AM2305 Digital Temperature and Humidity Sensor - Capacitive, Single-Wire Interface
The AM2305 is a calibrated digital temperature and humidity sensor combining a capacitive humidity element with a high-performance 8-bit microcontroller. It provides a single-wire serial interface for easy integration with Arduino, Raspberry Pi, ESP32, and other 5V logic systems.
Features
- Calibrated digital output via single-wire serial interface
- Wide measurement range: -40°C to 80°C and 0% to 99.9% RH
- High accuracy: ±0.3°C for temperature, ±3% RH for humidity
- Low power consumption with signal transmission up to 20 meters
- Compact, shielded design for stable performance in demanding applications
Out of stock
The AM2305 sensor integrates a capacitive humidity sensing element and a precision temperature measurement device, managed by an on-board 8-bit microcontroller. Each unit is factory-calibrated in a humidity chamber, with coefficients stored in OTP memory for accurate signal processing during operation.
Its single-wire serial interface simplifies wiring and communication, requiring only one data pin for bidirectional communication with a host microcontroller. The sensor’s shielded cable and robust construction ensure reliable performance in environments with electrical noise, making it suitable for professional monitoring and control systems.
Additional Information
| Weight | 0.01 kg |
|---|---|
| Dimensions | 15 × 8 × 4 cm |















