EWD3-WH wireless door/window opening detector, white

The EWD3 is designed to protect doors, windows or even drawers. It reacts to opening or vibration. It can also be used for home automation, e.g. the system can turn off the heating when windows are opened! Eldes' innovative wireless technology works over a range of up to 3 km in open areas, and the battery has an operating life of up to 5 years. Features: - Works over a range of up to 3 km in open areas - The battery has an operating life of up to 5 years. You won't need to replace batteries every few months – the EWD3 offers an amazing battery life of up to 5 years! The EWD3 is designed to expand the capabilities of the security system and protect entrances 24/7. The integrated shock sensor alerts the user to an attempt to break into a door or window. Adjustable vibration sensitivity will not let your noisy neighbors trigger the alarm.