Sanjie Door Window Alarms - 5 Pack,125dB,Volume Control,Window Door Open Alarm Sensors for Kids Safety/Dementia/Pool,Wireless Sensors Keep Your Home Security,Easy to Install,Long Battery Life

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

Volume Control - Alarms have 3 modes:125dB Alarm(loud enough), 100dB Alarm, 100dB Chime (dingdong 2 times). When the door window sensor is opened,it will alarm continuously for 30 seconds and will not stop until the window or door is closed

Long Battery Life - Powered by 3 LR44 button batteries supplied. Normal life of the alarm is up to 12 months. When the alarm is in low battery, the indicator light will flash to alert you