About This

【High Quality】: Material: ABS, Overall Size: 27 x 12mm/1.06" x 0.47"(H*D), Color: Black, White.
【Function】: NC (normally closed); when the magnets are together, the circuit is on - the light is on; when the magnets are separated, the circuit is not conductive - off. NC means normally closed. These are used with all commercial or residential card access control systems and all security burglar alarm systems.
【Installation】: Normally closed miniature magnetic door contact reed switch with two screw terminals for connecting alarm system wires, very easy to install.
【Application】: Magnetic door contact reed switch, can be used for door alarm sensor, siren, etc., very suitable for wooden doors or windows in homes and factories. Effective against theft.
【Package】: 2 Sets x MC-33C Magnetic Door Contact Reed Switch; here is our 90-Day Money Back Risk-Free Purchase Guarantee, › See more product details