Item Tag: 2.9in

Eufy Security – Entry SensorDetects Opened and Closed Doors or Windows, Sends Alerts, Triggers Siren, 2-Year Battery Life, Indoor / Outdoor use, Requires HomeBase, Optional 24/7 Protection ServiceRoom type – Office, Kitchen, Living room, Bedroom, Classroom, Study room, HallwayAbout this item2-year Battery Life: One battery provides 800 days of monitoring.For Doors And Windows: Compact and…