I currently live in an apartment, and was looking for a cheap and easy solution to sound off an alert if a door or window was opened. Most home security systems are really tailored for houses, and I wasn't real found of paying $30 - $40 per month to monitor a relatively secure apartment. After reading a BUNCH of reviews, I came across theFirst Alert alarm sets. I have now been testing these out for a few weeks, and am extremely happy with them!. Here are the pros:
- First alert sets are dirt cheap (you can find used / new sets on eBay for next to nothing)
- They run on three LR44 batteries, which you can find dirt cheap on eBay
- Each device has an off switch, so you can enable / disable them with a flip of the switch
These devices are no replacement for a home security system, but rather a nice addition to them. If you are looking for a cheap way to get notified when a window or door is opened, you should check these out!