Description
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.
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