Bests & Worsts Reviews from Amazon

I bought this alarm because I wanted a cheap and simple solution for home securtiy and it seemed to work well at first. My living room is open to the den and dining room/kitchen, so I set it up in one corner of the living room so that if someone broke in they would be sure to set it off well before they could reach my bed room. I tested it by walking in and out of the rooms and it caught me every time. It is sensitive enough to catch a person, but not sensitive enough that my dog (small Scottish terrier) will not set if off. So far so good right? Well I only armed it at night and the first two nights went by without indecent. The third night however we had 2 false alarms at 1:20am and 2:45am. Both times I got out my home defense tool and did a complete room to room search of the house and there is no chance that anyone was inside besides me and the wife. All doors and windows were securely locked and our dog was in the room with us with the door shut when the alarms sounded. Its not fun searching your house looking for a bad guy in the early morning hours, then trying to fall back asleep afterward. All in all this would be a good product (for the price) except even 1 false alarm a month is going to make this item worthless. I'd skip it and spend a little more money on a better device. Some notes on the actual functioning of the device: Just an arm waving will not set it off. The chime is annoying and NOT pleasant sounding. The alarm mode sound is very loud and shrill--it will defiantly wake up even a heavy sleeper with a door separating you and the device. The remote is infrared and you have to point it at the device like a TV remote--aka if you can't see the device the remote will not work. When set on alarm mode the device will blink a red light for about 20 seconds before sounding the alarm. The device seems to be well constructed and comes with 2 remotes. The device would trip an alarm if I was up to 30 feet away. (I didn't test it at further distances)