【Protect Your Family】 This touch sensor can secure main access points and trigger an alarm when the door/window is opened. The very loud 120 dB buzzer warns thieves, ensuring greater security. 【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】 Simple operation, one-button control of the doorbell/alarm switch, dual mode selectable. 【Security Important Elements】 When this alarm is installed in your home, office, or factory, you will be alerted when doors and windows are opened by children or in case of theft, to check security. When you stay in a hotel, you can install this anti-theft alarm on the door and window. It will protect you when you leave the hotel, and you can take it with you for next time use. 【Easy to Use】Window burglar alarm does not require any special wires. Simply hook up the interior doorknob and open the