eufy Entry Sensor E20（20 Pack) White

Dual-Side Detection: Supports both left and right-side installation for quick, error-free setup. Convenient Bypass Button: Simply press the bypass button to temporarily deactivate the sensor, allowing you to open the door without triggering an alarm. Your other sensors remain active. Long-Lasting 5-Year Battery Life: Features a CR123A battery with up to a 5-year lifespan, meaning less maintenance for you. Expansive Wireless Range with a US version of HomeBase™: Provides a stable connection with HomeBase™ at open-air distances of up to 656 ft (200 m). Requires a US