Bests & Worsts Reviews from Amazon

We live in a rural area just outside of town on a long narrow property. Our living space is on the oppostite side of the house from the drive so, without this alarm we don't know if cars are turning on our 450 feet long drive . We are not crime-free having had a truck stolen recently, so knowing who is in the drive or on the property is more important than ever. Be pro-active and get one before you have a problem. I will order another sensor to put where the truck is parked. My ideal setup would be 2 sensors and 2 receivers that all work together. I'd like a receiver in the living area and upstairs in my office. Setup is a snap; just remove the waterproof cover on the transmitter, load up 3 AA batteries and in a couple of minutes you are ready to protect. If you are in a hurry use a bungee cord to put the transmitter up. The "Owl Eyes" on the receiver light up when triggered so you get audio and visual alerts. You can select from multiple audio alarm sounds and when I found the dog bark I was sold on this device. Tests: Our 450 ft drive distance is no test for this device. It's been at that distance for a week. Today I got in the car to test the distance. While it will not work through a wooded area, a clear line of sight or semi-clear worked at 900 ft, 1100 ft and 1700 ft (was as far as I could go before trees interfered).