2x abs magnetic door window reed switch contact switch alarm security system.
Nc no door window contact magnetic reed switch.
Screw or double face tape is applied surface mount contact.
Recessed wired security window door contact sensor alarm magnetic reed switch white rc 33 10pcs.
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.
2sets magnetic reed switch normally open closed nc no door alarm window security product description.
Recessed wired security window door contact sensor alarm magnetic reed switch white rc 33 10pcs 4 1 out of 5 stars 42.
2 pair no nc wired magnetic door window contact reed for alarm system.
Door window nc contact security safety alarm magnetic sensor reed switch sets.
20 pk white 3 8 recessed wired security.
4 2 out of 5 stars 105.
Pair rolling magnetic contact reed nc gate door switch alarm security accessory.
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.
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.
10x wired home window door burglar security alarm.
4 1 out of 5 stars 42.
Lots no nc magnetic contact reed switch door window sensor entry security alarm product description note.
When the magnet separate the circuit is not conductive light off great for use in family and factory window door.
Magnetic contact sensors can be added to an existing wired alarm systems.
Weij 10 pair rc 33 nc recessed wired security window door contact sensor alarm.
Nc no door window contact magnetic reed switch alarm 3w 10 25mm.
Recessed wired security window door contact sensor alarm magnetic reed switch white rc 33 4pcs.
Nc no door window contact magnetic reed switch alarm 3w 10 20mm 4 3 out of 5 stars 63 8 99 8.
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.
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.
Concealed concrete switch set.
5 pk wired contacts.
They are ideal for protecting doors windows and patio doors and any opening device such as a drawer or cupboard for example.
Overhead door magnetic switch sets.