QS-910MD Surface Mount Small Switch Door/Windo Contact (Closed Loop with Leads) 10-Pack

My house was built in 2010 and had pre wiring done across all the doors and windows. Due to crappy builder grade windows we had to replace the windows on the 13 year old house. Of course during the install a number of the alarm wired harnesses were cut or yanked out of the wall even after we explained to the workers we wanted to keep them. That left me in a bind to find these replacements as everyone now has a wireless system. I believe the original system was an ADT alarm brand, not sure if that even matters. The point is these were perfect replacements for both the small magnet side and the wired switch side. Very happy to find these and easy enough to solder in the wires to connect into the existing system.