The UK edition

Eufy T89000D4 door/window sensor Wireless Door/Window White

£23.99

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2-YEAR BATTERY LIFE: One CR-123A battery provides monitoring for 730 days. FOR DOORS AND WINDOWS: Small and compact design fits onto any door or window frame. POWERFUL SIREN: If a forced entry is detected, a siren as loud as a jackhammer will be triggered on HomeBase, and you’ll be notified instantly on your smartphone. EASY INSTALLATION: Just peel off the mounting tape and stick the sensor onto the door or window you want to monitor. Entry Sensor. Protect Your Doors and Windows from Break-Ins with eufy Security Entry Sensor. Once a window or door is ajar by 1.5 inch, an alert will be sent to your smartphone, and a powerful siren will go off on the HomeBase (can be disabled). Requires eufy S