2x Recessed Normally Open Close NC NO Magnetic Reed Switch

Absolutely awesome product. Ordered 1 from someone else that said it was NC. Turned out to be NO.With this you don't really even have to know what you need. Try it 1 way and if it isn't right try it the other. And for the price it can't be beat.Only negative is the hole required needs to be larger than 3/8. Probably 7/16 cause 1/2" would be way too large.

Defective unit received. No labeling. Product conducted electricity regardless of the proximity of the magnet when tested by an ohm meter. I'm going to go buy an authentic Kwikee switch kit so I can know the product will function as intended.

Seems good and I finally found a product that works in both NO and NC applications. Most of the items say then are NC when they are NO - either way this one gives you the option and works well in a pantry auto-light

These work OK. The operating range is somewhere around 1/2 inch or 1 cm.

works for me,

Used these items to trigger an alarm on my garage doors. They worked perfectly.

This worked well with raspberry pi, I used it to test if my garage door closed.

Seems to be of a good quality