I had a viper 2 way alarm on my s10. Best alarm i've ever had or used. I had air pressure sensors with mine so if a window is broken or a door is pried open it would go off. I could sit in it, arm it, and if i had the sensitivity turned up if I breathed too hard it would set it off. Only bad thing was you couldn't set it with the windows open or it would go off. There is a way to deactivate individual sensors when you arm it but I never figured it out. Viper makes great alarms. That sounds like a pretty good deal to me like they ^^^ said as long as it is done right. Theres nothing more annoying than an alarm that goes off every 5 seconds cause it wasnt set up right.