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