This devise works well in my wife's she-shed. Enjoy the fruits if yer labor. But its in a dang good case.

The alarm is piercing loud - just like i want it. The set and entry warning chimes are a bit loud but that's ok for my use. I feel confident if someone tries to break in my building they will flee fast.

I know some reviewers complained about the delay. Haven't had long enough to assess battery life.

Second delay means any intruder has a full 30 seconds to cross the short effective range of the alarm before it alarms. As an alarm it's a joke, as an entry door chime, it's ok. Will not work as a motion sensor security alarm due to a * delayed featur...  Read More

The unit is worthless. Returning it for refund is simply false. The only way to get it to work again is to pull out the battery and e same battery back into the unit.

The remote was supposed to work with any of the other units but does not. It is also nuts that everywhere you look this item is advertised as having additional remotes available when that is absolutely false. Secondly, the remote is ir based.