. WIFI Door/ Windoor sensor
2. Working distance: ≥15mm
3. Support iOS/ Android APP
4. Battery: Alkaline battery (2* 1.5V AAA battery)
5. WIFI: 2.4G
6. With low battery remind function
7. Two way function
8. Battery life: 8~12 months
9. Controls can be done by "Smart Life" APP, Operate easily!