Sell SONOFF DW2 Wifi Door Window Sensor Wireless Open/Close Detector Home Security Alarm Sensor u18g best price

Description: This security wireless window sensor features battery-level display and low-battery reminder. The wifi window sensor is low power consumption and support wifi connection. The wifi door sensor will notify you when the door or window is opened. The window sensor features control right share function, let you friend or family can control the sensor as well. The door sensor features simple installation, just peel and stick. Specification:q Working Voltage: DC3V. Battery: 2 x 1.5V AAA battery.(Not included). Quiescent current: ≤ 40 μA. Wi-Fi: IEEE 802.11 b 2.4GHZ. Material: PC V0. Note There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. Package included: 1x Wifi window sensor.(Battery not included)