This device is kind of similar to the early morning lo-jack, with out the gps tracker. As a matter of fact, this device senses motion and calls up to 3 phones. The only thing is its about 8 inches of length and 3 inches wide. You would have to hide it somewhere by your drivers door or behind your front bumper? The device has a 23 ft radius and 40 ft wide motion sensor. When it detects anything around it moving, it will call 3 phone numbers you program it. Thing is you have to replace the batteries every 4 months.

heres a link to the device.

http://www.xenasecurity.com/product/...s/XA801/page1/

 

PS: You can put the device on silent as well.

 

This isn't for cars. It must be plugged into a phone socket for it to work.

 

lol

 

Ahah indeed, this looks more like house/warehouse security!