The AM2302 produces a calibrated digital signal. It employs a proprietary digital signal-collection approach and humidity sensor technology, ensuring its dependability and stability. Its sensor devices are linked to an 8-bit single-chip microprocessor.
Every sensor in this model has been temperature corrected and calibrated in a precise calibration chamber, and the calibration coefficient has been kept in the form of a program in OTP memory; when the sensor detects, it will quote the coefficient from memory.
AM2302’s small size, low power consumption, and long gearbox distance (100m) make it suitable for various demanding applications. Single-row packaging with four pins makes connecting very simple.
FEATURES
- High precision
- Capacity type
- Full range temperature compensated
- Relative humidity and temperature measurement
- Calibrated digital signal
- Outstanding long-term stability
- Long transmission distance, up to 100 meters
- Low power consumption
- 4 pins packaged and fully interchangeable
SPECIFICATIONS
| Model | AM2302 |
| Power supply | 3.3-5.5V DC |
| Output signal | digital signal via 1-wire bus |
| Sensing element | Polymer humidity capacitor |
| Operating range | humidity 0-100%RH; temperature -40~80Celsius |
| Accuracy | humidity +-2%RH(Max +-5%RH); temperature +-0.5Celsius |
| Resolution or sensitivity | humidity 0.1%RH; temperature 0.1Celsius |
| Repeatability | humidity +-1%RH; temperature +-0.2Celsius |
| Humidity hysteresis | +-0.3%RH |
| Long-term Stability | +-0.5%RH/year |
| Interchangeability | fully interchangeable |
DOCUMENTATIONS
SHIPPING LIST
- 1 x DHT22 Temperature and Humidity Sensor
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