Works perfectly! Surprisingly easy to program in! Beats paying $80.00 each directly from ADT!

Much cleaner look for double-hung windows than some of the SIXCT Honeywell sensors for the Lyric security system. Hint - these will auto-populate serial number into the software window if you activate the sensor by opening and closing the window 3 times (one beep/opening)

This sensor is a replacement I want to keep for my home alarm system. These little guys are not that cheap, and fail a lot. If you plan to install a home burglary alarm system, I recommend you to look for reviews on the amount of sensor failures. These ones do fail a lot. The system has been installed for 6 months now, and I had to replace two of them already.

When we bought our house, the previous owner hadn't kept the security system maintained. Several doors had contact sensors hanging off the frames, and a few wires were pushed up into the doorframe. I've been resurrecting the complete security system over the last week or so, but I didn't want to take the door trim off, fish out the wires, re-hang the trim, etc, etc. These slimline wireless sensors aren't *that* much larger than the wired versions. Yes, they're larger. Yes, they're a little more noticeable. But they're wireless and allowed me to fix the couple of doors where the wires had gone bad without taking my walls apart. That's worth it, in my book.

I installed my own panel, so I had my panel's master codes. 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 know-how to use them) yourself. If you're reasonably experienced with "Do it yourself" projects, this is not difficult. It took me about 30 minutes of research online to figure out how all consumer-grade security panels work and about an hour of reading the programming manuals to work out how to program mine.

The honeywell panel (with the newer keypads) makes adding these into the system a breeze. You just set the zone type, tell the panel it's an RF sensor, and then separate the magnet and transmitter a couple of times to auto-enter the serial number. From that point on, it "just works". You should make sure to test your sensors in the location you want to install them before you tape or screw them to your door, but I have a rather large house, and these worked fine when the receiver (my RF keypad) was on the first floor on one side of the house, and the sensor was in the basement on the opposite side of the house. I live in a pretty remote area, though, with almost no RF interference, so your milage may vary.

Bottom line, I love these sensors, and I'll buy them again as I need more.

Worked great to protect 3 windows not hard wired. Seems like good range, linked to 6160RF keyboard with no problem.