Sonoff DW2 WiFi Door Window Sensor

Sonoff DW2 WiFi Door Window Sensor
Remind you when door/window is opened or closed. Keep linkage with SONOFF smart products for your easier smart life

Features:
Sync Status
Alert Notification
Smart Scene
Battery-level Display
Share Control
No Gateway Required
Bluetooth Low Energy Pairing
History Records Check

Specifications:
Working Voltage : 3VDC ( 2 x 1.5V Battery )
Current : <40uA
Emission Current : <15mA
Wi-Fi : IEEE 802.11 b 2.4Ghz
OS : Android 4.1 & IOS 9.0 or Higher
Installation Gap : <5mm
Working Temperature : -10degC - 40degC
Material : PC