I recon it will be the same regents as for individual testing kits.I only have the Copper Checker, so for me it would come down to how expensive the reagent refills are. If it's the same price as for the current Checkers then I'll probably stick with test kits.
Of course it requires reagents. That colours the water.My question is - does it require reagents? If not I’ll buy it. I’d it does - not a lot of reason to.