i'd just get good ins on it. if someone is going to screw with it while your in class,the only thing the pager alarm is going to do is alert you to the fact that your car is being fucked with after the fact. hey,someone broke your window,wee-oo wee-ooo,like someone is going to get involved. your going to have to drop what your doing in class,run out to the parking lot,and find your car messed with.