







Magnetic contacts is widely used for alarm system(panel) to detect state of door. It consist of a reed switch part and a magnet part . When door closed, reed switch is effected by magnet and turn ON; when door open, reed switch is effected by magnet and turn OFF, trigger alarm.
Contact type: NC
Material: ABS plastic
Color: white
Pack: 5pairs/bag
Small size, nice looking, ideal for window or wooden door
Screws installation make it more firm
ABS normally closed door contact switch, alarm when the magnet part away
Application: door / window entry burglar alarm system
NC magnetic contact switch sensor
8 reviews for 5 Pack Surface Mounted NC Magnetic Door Contacts Switch Sensor for Alarm
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$7.99
Amazon Customer –
Great value
Great value and quality
Boop boop –
Wonderful
This great product work very well
Albert H. –
They work great.
They work great.
Raymond A. Lynch –
They work great
Great replacement equipment, inexpensive and they work fine
Donald R Eaves –
it doesn’t works for me and it’s taking me a long time to get around to the project
I thought it was for Cove system. It is not.
LATISHA TISDALE –
Worked perfectly.
I needed additional magnets so that I could open my window and still have my security alarm set. If someone would try to come in my windows while they’re open the alarm would go off and notify the monitoring system. Less expensive to buy a set than to buy individual magnets from my alarm company. I will be ordering additional sets for the rest of my windows. Thank you.
Edel Rodriguez –
Lo mejor
Todo muy bien
Rz653 –
Works perfect
After extensive searching for the right contacts for our alarm system. These worked just right as replacements for our broken, worn out ones