RC-33 Door Magnetic Reed Switch The reed switch is an electrical switch operated by an applied magnetic field. Magnetic Door Switch Magnetic door contact reed switch, suitable for door alarm sensor, siren, relay, LED switch, GPS low voltage equipment, etc., effective anti-theft. Designed for use with alarm systems. Great for use in family and factory window, door. etc. Material Rc-33 Nc Recessed Wired Window Door Contact Sensor... – Grandado E-outstanding 2 Pcs Recessed Door Window Magnetic Switch RC-33 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch, for Home Security and Burglar Alarm Systems, Sets of 5, White : Electronics Return Policy: Voluntary 30-Day Return Guarantee
