I f you look aroound you can find them for 250. To a certain point most alarms work the same way. If the unit senses vibration the alarm goes off. Unless you live in a place like Northern Virginia on Cali a basic one with a starter kill should work good for you. However if the car crime is bad where you are invest some cash and get one with a pager function. I am sure I speak for everyone here when I say I don't want to see any more R's added to Victors list.