My primary reason for buying these devices was to keep my two year old daughter and my three year old son from sneaking outside. I’m embarrassed to say that the two of them escaped early one Sunday morning and went to the next door neighbor’s house to play with their friends, but now the kids won’t open the doors when “the squeakers” are on.

Of course there is also the added benefit on security!

I have these units on two normal doors and on one sliding door. I haven’t had any problems with false alarms or with the units falling down and I HIGHLY RECOMMEND THIS PRODUCT!

We live in an apartment, which only came with a deadbolt for the door. Needless to say, that even though we live in a nice area, and in a gated community, we wanted a bit more security.

I researched online for a while, and all of the products in this category of security devices (small, cheap, easy to install) are about the same, so I went ahead and ordered this brand from Amazon. It does what it is supposed to do. It is a little device that has two pieces. The main unit, and the little sensor unit. Your stick them both (they come with adhesive already on them, with a sticker covering backing you just have to remove) to the door, at the edge where the door opens. One on the door itself, the other on the door jam, aligned with the other.

Once the unit is armed (and has its 2 AAA batteries (not included)) then when either one of the sensors moves too far away from the other (such as when the door opens), then the alarm goes off.

The reason I am rating this 4 instead of 5 stars, is because the alarm isn’t quite as loud as I would like. They say about 90-100 decibels. It is more like 60-ish. It is still loud, and would certainly startle an intruder, but if your door is several doors and hallways away from where you sleep, and you are a sound sleeper, you may just sleep right through the alarm. It should have been louder.

We have the window sensors from this same brand on order now, I will review them once I have installed them.