If all you’re looking for is something to make
noise, I’d look at something like this:
GE Personal
Security Window/Door Alarm, 2-Pack,
DIY Home Protection, Burglar Alert, Wireless Alarm, Off/Chime/Alarm, Easy
Installation, Ideal for Home, Garage, Apartment, Dorm, RV and Office, 45115
https://www.amazon.com/dp/B00178HMCI..._UwsvBbJKNVM03
A more full-fledged alarm system is pointless without having any central monitoring, IMO.