The HTU21D is a low-cost, easy to use, highly accurate, digital humidity and temperature sensor。Each sensor is calibrated and tested carefully。
| input voltage | 1.5V—3.6V |
| humidity rangge | 0—100%RH |
| tempature range | -40℃—125℃ |
| interface | I2C |
| Typical humidity accuracy | ±2% |
| ypical temperature accuracy | ±0.3C |
| measure time | 50ms |
| drift | -0.5%RH/year |
| response time | 5 s |