Video Doorbell S220 Add-on + Entry Sensor

Video Doorbell S220 Add-on X1 2.5x the Clarity: The built-in Sony 2K sensor and professional-grade lens allow you to view activity in picture-perfect resolution. See visitors in sharp detail as they approach your door. Dual Power Options: Half a year of coverage from one charge or non-stop power supply via a wired connection. Expanded Field of View: The increased 4:3 Aspect Ratio ensures you get a head-to-toe view of anyone who approaches and gives you the perfect viewing angle every time. HomeBase 2 Required: The eufy Security Wireless Add-on Video Doorbell requires a HomeBase 2 to operate. Please note, the doorbell alone will not work.   Entry Sensor X1 2-YEAR BATTERY LIFE: One battery provides monitoring for 730 days. FOR DOORS AND WINDOWS: Small and compact design fits onto any door or window frame. 100-DECIBEL SIREN: If a forced entry is detected, a siren as loud as a jackhammer will be triggered on HomeBase, and you’ll be notified instantly on your smartphone. EASY INSTALLATION: Just peel off the mounting tape and stick the sensor onto the door or window you want to monitor.