Normal Close NC Magnetic Door Window Contact Reed Switches 3 Sets

Surface mount contact, screw mount white ABS housing. Wire is not included.Comes with installation screws.
Great for use in family and factory wooden windows and doors. etc.
NC means Normally Closed:When the magnet together, the circuit is conductive( light on ); when the magnet separate, the circuit is not conductive ( light off ). When make order,pls check carefully!

Tags:$0 - $20,Home Security Systems,Locks,Magnetic Reed Switches,Security,Security & Surveillance,Security Monitors & Displays,Security Sensors,Surveillance Accessories,Tools & Home Improvement

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