3 Sets NO/NC Black Magnetic Switch Wiring Recessed Door Sensor Hidden Window Contact Reed Switch for Access Control Replace Alarm System

Work perfectly. Used with dc motorized arduino project to inform what directions and when to stop. Zero complaints and work exactly like I wanted them too.

Nice that these magnetic switches can be configured in NO or NC. Screws included for hard mount installation, no sticky pad on backside of them. Little trick with these is to use double sided tape for initial install to align them, when set right then drill for screws. Good replacement for worn out magnetic door switch on my coach.

Incorrect description. Labeled and sold as "normally open". Actual these switches are "normally closed." Completely unsuitable for the purpose.

The media could not be loaded. The lights came with everything I needed to mount, route and switch with several options for each. Installation was straight forward and required little more than a dash of common sense to perform. However, anything Beyond a standard install has its challenges.As an example, I did not want to use the provided, physical on/off switch. I preferred a magnetic switch so the unit would come on when I opened the cabinet door. While this was accomplished easy enough, the lights use very, very thin (22 gauge) wire. Splicing, connecting and soldering proved difficult. If you take your time, it's very doable. Just know, it is finicky and there isn't much "wire slack" if you make a mistake. As you see in the video, the lights as well as the secondary purchased magnetic switch works very well.

Item used to switch LED string lights in a cabinet when the door is opened or closed. Works well and sensitivity to magnet proximity is not critical.

Fast shipping. Great mounting options. Double check your voltage and amp/milliamp requirements before ordering.

These will work great for the instrument box light on my boat!

Exactly what I wanted. I used their pictures to determine which type I needed (default open/close) and they sent me the correct part according to their picture references. However, believe all of the bad reviews you see here that say these do not work. One quit working on me while I was still installing it. The dead magnet side... replacing that part and it worked again. The power side still worked. How does a magnet even go bad?!! Anyhow, I only needed two of the three I ordered so no big deal. Figured I'd order three since there were so many bad reviews. Nope, second one just died out of nowhere. I give up. Looking for a replacement from somewhere else.