Posted by a reviewer on Amazon

You will need to have access to the installers code for your panel else you will need to contact your alarm system provider to get these paired to your system

Posted by a reviewer on Amazon

I have had these wireless contacts for about 5 months wout any issues

Posted by a reviewer on Amazon

If you put the sensortransmitter at the top of the bottom sash and the magnet at the bottom of the top sash you can protect a doublehung window with just one sensor

Posted by a reviewer on Amazon

But because of the tiny 316 clearance between the sashes on my windows there is no room for the provided magnet

Posted by a reviewer on Amazon

When we bought our house the previous owner hadnt kept the security system maintained

Posted by a reviewer on Amazon

These slimline wireless sensors arent that much larger than the wired versions

Posted by a reviewer on Amazon

But theyre wireless and allowed me to fix the couple of doors where the wires had gone bad without taking my walls apart

Posted by a reviewer on Amazon

To add these to your system you will either need to contact your installer or you will need to have the installers codes to program the panel and the knowhow to use them yourself