i have a viper 5900 series w remote start and an added proximity sensor, , pager remotes suck , they break about once every 2 years, and they are 100 bucks to replace. i have a clifford g5 avantguard, much better imo. that alarm you can adjust both the shock and motion sensor sensitivity remotely from the control.has glass tampering sensor, tilt sensor, car jacking feature, window roll up/dpwn control,and remote start. it is a few years older, and it doesnt page your remote when something is happening. only reason its not installed on my car bc its a 250 dollar bill just to install it and the car alrady has a working alarm , but when i have money to spare i may def install it. i didnt find one of these when i was looking to install an alarm, and i think new its like 6-700 bucks installed lol...