I made a webpage that tests Simplex signals and determines what type of signal it is.
http://computek272.calvinet.com/4903_checker/index.php Click here to see it
Could be quite useful when finding alarms on eBay auctions since it’s always a good idea to do the research before you buy the alarm.
Awesome! 
When you want to add the TrueAlerts, here is the TrueAlert selection document with all of the different models - http://smup.us/truealertselection
Actually, if the strobe is smart-sync, the strobe doesn’t even flash once - it just holds the charge until the power is cut.
Oh yeah, that’s right. My memory failed, lol.
Alright, I’ve added the TrueAlerts. If you get an issue from a missing model number, there’s a link on the page to send an email.