| Main centres: | 1-3 business days |
| Regional areas: | 3-4 business days |
| Remote areas: | 3-5 business days |
| USB input | DC5V/2A (not Included) |
| (USB power and dry batteries can not be used in the same time) | |
| Input voltage | DC3V AAA x 2 Included |
| 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 |