【Protect Family】 This touch sensor could secure the main access points and trigger the alarm when the door/window is opened. The super loud 120dB ringtone sounds thieves, making it safer to use. 【Wide Range of Applications】 This door glass sensor can monitor your home 24 hours a day. Use it on doors, windows, cabinets, drawers or anywhere you want to be notified when it is opened or closed. 【Doorbell/Alarm】 Easy operation, one button simple doorbell/alarm switch control, dual mode can be selected. 【Essential Security Items】 With this alarm installed in your home, office, factory, when the doors and windows are opened by children or theft, it will alarm you to check the security. To stay in the hotel, you can install this burglar alarm on the door and window, it will protect you when you leave, take it with you for your next use. 【Easy to Use】Window burglar alert requires no special wires. Just hang on the interior door knob, open the switch, the window opening alarm will scare away