Hanna Instruments Colorimeter

[txg8gxp]

I was curious about how people feel about the Colorimeters who own them, They add up but seem to be a good way to go, I would be interested in Ca,Alk,Phos meters.
http://www.marinedepot.com/Hanna_Instruments_Checker_Colorimeter_Single_Item_ Monitors_Controllers_for_Saltwater_Aquariums-Hanna_Instruments-HN1181-FITEMOID-vi.html

[Teeb]

I just picked up the ca and phos and they are easy to use. I wish they would come out with a few more and they'd be the only test kits I'd use.