Door & Window Entry Sensor (Pack of 2)

This entry sensor monitors when a door or window opens and for how long it stays open, useful for triggering security alarms, lights, or doorbells. Requires Smart Security Gateway EASY & SECURE SETUP: Mounts to a flat surface on any door or window, with included 3M adhesive without any screws or tools. 10MM wide gap allowed between sensors. MAXIMUM SAFETY: Anti-tampering sensor alerts you when the sensor is being forcibly removed keeping your kids & family safe from burglar. RED DOT AWARD-WINNING DESIGN: Sleek and Minimalist form factor is sure to complement your home or business security system. Works with most doors and windows such as closets, drawers, and more. COMPATIBILITY: Provides a smart lifestyle by connecting with Alexa Echo, Google Home, & Apple Homekit. Use voice commands for a hands-free experience. The sensor setup requires a 2.4GHz WiFi to connect with Linkstyle Gateway via Zigbee. SPECIFICATIONS: Power Supply DC 3V, 2 CR1632 batteries Operating Temperature -10°C~?55°C (14° F ~ 131°F) Operating Humidity ≦95%RH Communication Method Zigbee 3.0 Standby Time ~ 1 year (if triggered 30 times per day) Dimensions (Main Unit) 54.0 mm*22.2 mm*12.5 mm (2.13in x 0.87in x 0.49in) Dimensions (Secondary Unit) 33.3 mm*10.2 mm*12.5 mm (1.31in x 0.40in x 0.49in)