Protect the family This touch sensor could secure the main access points and trigger the alarm when the door / window is opened. The very loud 120 dB buzzer sounds thieves, making them safer to use. Wide range of applications This door glass sensor allows you to monitor your home 24 hours a day. Use it on doors, windows, cabinets, drawers or anywhere you want to be notified of its opening or closing. Doorbell / Alarm Easy operation, a simple doorbell switch control button / alarm, dual mode can be selected. Safety essentials With this alarm installed in your home, office, factory, when doors and windows are opened by children or theft, it will alarm you to check security. To stay at the hotel, you can install this anti-theft 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 does not require any special wire. Just hang on the inside door button, open the switch, the piercing alarm will scare off unwanted intruders, leaving you and your home well protected. See more details.