A small alarm that may be installed anywhere and protect all sorts of things.The smallest possible movement is capable of activating the alarm which sounds until the owner comes to disarm it. Suitable to protect anything that may be left unattended for a little while and needs to be protected, like handbags, suitcases, open drawers, bicycles, trolleys etc. The kit includes a mercury switch, and the buzzer. V 9VDC PCB 20x51mm