Great product and it arrived packaged well and works great. But you need to be careful when ordering this style switch. I myself thought this switch would stay open with the magnet energizing the switch and when the magnet was pulled away the switch would close thus completing the circuit. Not so... just placed an order for the N/O switch my error but at least I learned and will probably find another project to utilize the switches.
Verified purchase: Yes | Condition: New
the rc-33 nc recessed wired door contact sensor alarm work really well with the entrance door in my house built in 1990.
Verified purchase: Yes | Condition: New
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