eufy Security Entry Sensor V2 (Addon) LimitedStock Long battery life - up

Long battery life - up to 1 year

and expandability of up to 6 handsets

or just plain dying

and she realizes that she'll need to take risks like her mother did

with four of its five singles included here

eufy Security Entry Sensor V2 (Addon) LimitedStock Long battery life - upOverview 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 Security HomeBase. Easy Installation Just peel off the mounting tape and stick or screw the sensor onto the door or window you want to monitor. 2 Year Battery Life One CR 123A battery provides