Temperature and humidity sensor has a capacitive humidity sensor and a digital temperature sensor, optional one-wire/I2C communication mode.
Application: Temperature and humidity sensor is widely used in HVAC, dehumidifiers, automobile, data loggers, humidity regulators, and humidity detection and control system.
Specification:
Item | AM2320 | AM2322 |
Weight | 0.5g |
Dimension (L*W*H) | 12.1*4.5*15.0mm | 7.8*4.0*11.3mm |
Communication mode | Optional one-wire and I2C |
Supply voltage | DC 3.3-5.5V | DC 3.1-5.5V |
Measuring range of relative humidity | 0~99.9%RH |
Measuring range of temperature | -40~+80℃ |
Accuracy of humidity | ±3%RH | ±2%RH |
Accuracy of temperature | ±0.5℃ | ±0.3℃ |
Resolution | 0.1℃/0.1%RH |
Long-term stability | <0.5%RH/year, <0.1℃/year |
Power consumption | <350μA | <200μA |
Sampling period | 2s |
Response time | <5s |
Housing material | PC |
Working environment | Temperature: -40~80℃, humidity: 0~99.9% no condensation |
Storage environment | Temperature: 0~80℃, humidity: <95%RH |
Wiring | 1 red: VDD, 2 yellow: SDA (serial data), 3 black: GND, 4 white: SCL (serial clock, or connect to ground in one-wire mode) |
Dimensional drawing (unit: mm):

Pin assignment:

Tips: Recovery processing of temperature and humidity sensor
The temperature and humidity sensor placed under extreme working conditions or chemical vapors can be restored to standard conditions by following procedures.
- Maintain temperature and humidity sensor 2 hours (dry) at 45 ℃ and the humidity <10%RH.
- Then maintain temperature and humidity sensor more than 5 hours at 20-30℃ and the humidity >70%RH.
Temperature and humidity sensor includes a capacitive humidity sensor and a digital temperature sensor, built-in one high-performance 8-bit SCM, optional one-wire/I2C communication mode, with small size, excellent quality, fast response, all automated calibration, completely interchangeability, high cost performance, low power consumption, long signal transmission distance.