Any experience with HACH Copper testers?

[Gmj4409]

I know they make a Color Disk model ($80) & Colorimeter ll ($500). Has anybody had an opportunity to see one in action? Thanks

 

[Maritimer]

I've heard them come highly recommended, but haven't seen them around much . . . #reefsquad, do any of you folks know of anyone using the Hach units?

~Bruce

 

[dbl]

No experience with them either. Interested to see others response.