Sanjie Door Window Alarm Sensors, 5 Pack, 125dB, Volume Control

Peace of Mind – Door window alarms guard you and your home’s security. Alarms can also keep the safety of kids as well as the elderly who need care
Wide Use – Magnetic sensor will alarm or chime if separated.Can be used in pool, home, apartment, store, office, garage, RV, warehouse, hotel and more. Alarm sensor can be installed on sliding door/window, cabinet, drawer, etc
Easy to Install – Tear off the 3M double-sided tape on the back of the wireless alarm and install it on the door or window, etc. Turn on the switch, set the mode and ready to use. It is recommended that the alarm be installed indoors