Disclaimer: Requires Eufy HomeBase. Protection That Lasts: The included battery provides up to 2 years of power for round-the-clock security. Extensive Coverage: Detects motion within a 100° radius and up to 30 feet away—more than enough to secure an entire room of your home. Adjustable Sensitivity: Tailor the sensitivity of the motion sensor so that it only alerts when humans are in range—rather than your playful pet dog or cat.0 App Alerts: Notifies you as soon as motion is detected, sending a message to your phone via the eufy Security app, no matter where you are. Link it Up: Connects to eufy Security HomeBase (Not Included) and well as all other eufy Security products. Simply pair it via the eufy Security app and press the button on the sensor to add it to your system. eufy Security Motion Sensor From eufy, where privacy comes first. Comprehensive Safety Solutions for Your Home Protects You, Your Family, and Your Privacy Every eufy Security product is engineered to ensure your data is kept private. Keep a secure record of everything that happens around your home. Customizable Detection To prevent your playful pets from accidentally triggering the motion sensor, you can adjust the sensitivity so that it only triggers when human-sized intruders are detected. Part of the Family Adding the motion sensor to your existing security system is a breeze. Once installed, pair the device via the eufy Security app. Then, press the button on the motion sensor, and HomeBase will add the sensor to your existing security setup. Instant Alerts: As soon as motion is detected, the sensor will send an alert to your HomeBase (not included), which in turn will send an alert notification straight to your phone (eufy Security app required).