I gave my lovely bride a Navalert for Valentine's Day (she already has all the jewelry any two women could ever wear, and I can't buy her clothes) and I'll be darned! It fired right up!
Installed the software (which does not work on Windows XP x64 FWIW), downloaded the update, drove down the street to the friendly neighborhood red light camera, and presto! "Red light camera!" Plus it changed from Kph to Mph!
Yes, you can set the time and the whatever, but you don't have to in order to make it work. Download, plug, drive. And away you go!
Lord-love-a-lizard, it's just too much!!