【Family Protection】This touch sensor can protect key access points and trigger the alarm when the door/window is opened. The super loud 120 dB buzzer warns thieves and makes it safer to use. 【Wide Range of Applications】This door and window sensor can monitor your home 24 hours a day. Use it on doors, windows, cabinets, drawers, or anywhere you want to be notified when something is opened or closed. 【Doorbell/Alarm】Easy to use, simple one-button doorbell/alarm switch control, dual mode selectable. 【Indispensable Security Elements】With this alarm installed in your home, office, or factory, you will be alerted when doors and windows are opened by children or theft occurs, prompting you to check security. When staying in a hotel, you can install this anti-theft alarm on your door and window. It will protect you when you check out, and you can take it with you for next time use. 【Easy to Use】The window burglar alarm requires no special wiring. Simply clip it onto the interior door handle,