| USB input | DC5V/2A (USB power and dry |
| Input voltage | DC3V LR03*2 |
| Quiescent current | ≤75uA |
| Alarm current | ≤60mA |
| Low voltage and undervoltage | ≤2.2V |
| WiFi | 802.11b/g/n |
| Detection temperature | -10℃-55℃ |
| Detection humidity | 0-99%RH |
| Alarm sound pressure | 55dB |
| Installation method | wall-mounted |
| Working temperature | -10℃-60℃ |
| Working humidity | maximum 90%RH |

