SimpliSafe Entry Sensor - Window/Door Protection - Compatible with Gen 3 System

Entry Sensor - Safeguard your doors, windows, cabinets, and more. Compact Design - Fits on nearly any window, door, or cabinet. Instant Chime Alerts - When a door or window opens, the Base Station can sound a chime or notify you which sensor has been triggered. Customizable Alerts by Sensor - Set up Secret Alerts that won't trigger an alarm but will send a discreet notification directly to your phone. Simple Setup - Peel and stick for installation, or permanently mount with the included hardware. Long-Lasting Battery - Pre-installed battery. Compatible with the SimpliSafe Gen 3 home security system. SimpliSafe prioritizes safety with its optional professional monitoring and Fast Protect™ Technology, delivering 24/7 emergency response. It provides sensors for every room, window, and door, along with HD cameras, smart motion detection, and flood hazard sensors. Powerful sirens deter intruders, and expert monitoring is available without long-term contracts or hidden fees.