Description:

To stay at the hotel, you can install this alarm on the door and window, it will protect you, upon checking out, take the alarm with you for next-time use.. With this alarm installed in your house, office, factory, when the doors and windows are opened by children or the theft, it will alarm you to check for safety.. Requires no special wire. Just hang on the inside door knob, open the switch, the piercing alarm will scare off any unwanted intruders, leaving you and your home well protected.. 120dB super loud alarm ringing frightens thieves away, more secure in use.. Easy operation, simple one-button switch control doorbell/alarm, double mode can be selected..