Magnetic Door Lock, 1200LBS 500kg Holding Force Electromagnetic Lock, DC 12V Fail-Safe Mode Door Access Control System, Outswing Door Security

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Did not installed as it was too big for my client. He needed smaller box then this. But I liked the quality and price for this box.

If you get a power spike or whatever, you can wire around the "potted" electronics by cutting wire off as close to pot as possible, only have about 1 1/2" left. ......... remove pot, mounted with double sided tape. If using 12 volts, hook red and yellow wire from magnet together and hook positive (+) to them. Hook white and black wires together and connect to negative (-). You no longer have over voltage or over heat protection by will work fine. Put a low amp in line fuse on the positive side for protection if ever shorted out. It's like most Chinese products, they are 100% fully assembled "kits". Meaning you have to take them apart and rework them to make them function properly.

This product seems to be very durable and strong. It would be nice to have some directions for the parts installation.

We purchased to 1200 pound maglocks and we installed them (1) worked but was very slow to operate (1) would not work. Contacted seller and they said they would send a new one out and I could return the bad one. Never received the replacement. Said it was lost in shipping. They never sent another one. The one that was working stopped after 2 weeks. Had to purchase two more from a different company.

Seems well made

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Best deal I found and the quality is good.