*Door and window sensors only work with our Yisele security system
*The door and window sensor has been connected to the alarm. Simply connect the alarm to the alarm host and the alarm kit can be used. When the door/window is opened, the working siren is triggered
*Remove the insulation film before use. Simply secure them with 3M adhesive tape
*Power supply with 1 x 23 A 12 V alkaline battery (battery included)
*The main unit of the door/window sensor and the magnetic strip are installed on the door/window and on the door/window frame
