Wireless Driveway Monitor

The sensor I used required a shallow trench for the wire. Sensor was buried in the center of the gravel drive (or alongside a paved one). This thing senses changes in the earth's magnetic force, I think, due to moving steel nearby. Anyway, even during the last two summers' electric storms we had no false alarms.

It's connected to a processor in my shop that uses X-10 hardware to send a signal to our house. Sensor is 1200' from the house. Works great. First time I tried it to adjust sensitivity, my steel-toed boots set it off. Now it's set for a slow-moving small tractor. Requires a good ground to work correctly.

This was after two burglary attempts on my shop on two consecutive nights. I also put in an alarm system using the same X-10 transmitter. Sleeping much better now.

Both were available from the supplier who sold me the burglar alarm. Lots of X-10 is also on Ebay. If you need that, email me for the part numbers. I've replaced one X-10 sending unit after a lightning strike but that's the only problem I've had. Does not detect people (or deer) and, very important to me, NO false alarms.

I installed one for a client house and he's had the same experience, except for the X-10 replacement. Gonna cost you a little more than that $90 but I sure don't need unnecessary 3AM trips with a shotgun down to my shop. And I'm not saying anything against the Northern sensor as I don't know what it is. Most of the wireless are infrared sensors.