The test strips are for pool/spa. You should be able to get them any place that has pool or spa maintenance stuff. I think I might have seen the kit at Wal Merde but I got mine at a spa/hot tub business outlet. It's an AquaChek as you can see in the photo I posted. They also make kits that test for 'combined' or 'total' chlorine, but I'm not sure what that means exactly... combined with what? May or may not be ammonia. I think I read somewhere in the research that once chlorine hits the water, it starts 'combining' with some of the stuff which it's designed to kill or neutralize. This may not necessarily be ammonia, which is what it's combined with to make chloramine? Confused yet? I sure as hell am & real glad Vernon just uses chlorine.
There's already some good info on chloramines & how to best deal with them for our application on the Spectrapure FAQ site:
http://www.spectrapure.com/SYSTEM_BREAKDOWN.htm
phideltreefer already posted the link but only provided a partial quote in is post here. If you read the whole article, most of your questions should be answered.
"Our dual cartridge combination of DI-SF-CI-10 followed by DI-AR-CI-10 is an effective and more economical way to remove the ammonia"
Steve's link to reefkeeping pretty well covers it too....