Security Anti Strong Intrusion Door Stopper Alarm Anti-theft Burglar Door Open / Closed Detectors

Label:Yes Size: 14cm*4.5cm*3.8cm Name: Door Open / Closed Detectors Power supply mode: battery (not included) Battery model: 1 section DC9V battery Applicable to: home daily use, hotel, single apartment Color: black

Feature 1: 120 decibel high-pitched alarm Feature 2: Anti-slip damping primer Feature 3: Three-speed sensitivity adjustment

Package Includes: 1 X Door Open / Closed Detectors