Door window nc contact security safety alarm magnetic sensor reed switch sets.
Nc no door window contact magnetic reed switch.
2sets magnetic reed switch normally open closed nc no door alarm window security magnetic door switch magnetic contact switch reed switch for gps alarm or other device dc 5v 12v 24v light.
20 pk white 3 8 recessed wired security.
Magnetic contact sensors can be added to an existing wired alarm systems.
10x wired home window door burglar security alarm.
Overhead door magnetic switch sets.
Nc no door window contact magnetic reed home switch alarm 3w 10 20mm.
When the magnet separate the circuit is not conductive light off great for use in family and factory window door.
Nc no door window contact magnetic reed switch alarm 3w 10 20mm 4 3 out of 5 stars 63 8 99 8.
When the magnet together the circuit is conductive light on.
1 pair magnetic switch includes two parts the one part is magnet and the other part is switch with wires.
Recessed wired security window door contact sensor alarm magnetic reed switch white rc 33 10pcs 4 1 out of 5 stars 42.
2x magnetic reed switch normally open closed nc no door alarm window security magnetic door switch magnetic contact switch reed switch to dc 5v 12v 24v light black 4 2 out of 5 stars 15.
Pair rolling magnetic contact reed nc gate door switch alarm security accessory.
They are ideal for protecting doors windows and patio doors and any opening device such as a drawer or cupboard for example.
Lots no nc magnetic contact reed switch door window sensor entry security alarm product description note.
Screw or double face tape is applied surface mount contact.
Recessed wired security window door contact sensor alarm magnetic reed switch white rc 33 4pcs.
4 1 out of 5 stars 42.
2 pair no nc wired magnetic door window contact reed for alarm system.
99 speedda 6 sets magnetic reed switch normally open closed nc no door alarm window security magnetic door switch magnetic contact switch reed switch for gps alarm or other device dc 5v 12v 24v light 4 1 out of 5 stars 57.
Magnetic reed switches are available closed loop open loop spdt dpdt options with standard wide and extra wide gaps.
Yootop 5 sets recessed wired magnet reed switch window door magnetic contact sensor alarm white 4 7 out of 5 stars 43.
1 4 super mini switch set.
Nc nc means normally closed.
2sets magnetic reed switch normally open closed nc no door alarm window security product description.
Concealed concrete switch set.
5 pk wired contacts.
Weij 10 pair rc 33 nc recessed wired security window door contact sensor alarm.
2x abs magnetic door window reed switch contact switch alarm security system.