And, if you have a choise DO NOT get a compustar!!! they are picky finicky and very unreliable. The 2way delay time is the longest of any alarm ive ever installed and the remote start is so picky about the conditions it will start in you might as well get in and start it yourself. not to mention, the batteries are gone every month like dan says.

The Code battery life is a year on one AAA and the vipers is 6-9 months..