PATIKIL Magnetic Reed Switch, 1 Set Normally Open NO Wired Surface Mounted Garage Door Window Contact Switch For Home Security

This wired surface-mounted door and window contact is good for detecting the opening and closing of the door and window. The wired surface-mounted magnetic reed switch is designed for easy installation and convenience. Simply connect the wires to your alarm system and attach the switch to the desired location on your door or window. When installing, make sure to place the contact on the interior frame of the door and the magnet on the door itself, ensuring proper alignment. Contact Type: Normally Open(NO); Size: 28mm x 14mm x 9mm (L*W*H); Operating Distance: 5mm-10mm; Mounting Hole Dia.: 3.5mm The magnetic reed switch is made of high-quality ABS material for long-lasting durability and corrosion resistance Wired surface-mounted design for easy installation and compatibility with various door and window monitoring settings