4PCS SONOFF DW2-RF-433MHZ Sensor Door Window Alarm Sensor
Features: *Send the alert to your smartphone when the door/window is opened. *Open the door to trigger lights on/off. *Compatible with IFTTT service to set more routines. *Share the sensor to make more users know the status of home. *Can check history records last 3 months. *Low power consumption technology maximize the battery life - up to 2 years. *Easy to install and remove.
£23.40
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