Spin touch digital tester

Corals.com

MERKEY

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Anyone else try one?


Looks great. $800 for machine. Tests everything you'd want to in 60 seconds at about $3 a test, with 3 ml of water, if you search for it online and the tests. Used by fish farms apparently.

I like that it's not sold by a controller company...
Saltwater city in Bellevue WA uses one for their customers.

I'm thinking I need one hahaha
 

taricha

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Impressed. It's clever. How do you do those 7 tests in a tiny box with 3 mL of water?

Plastic disc with a bunch of chambers each one gets sample water and tiny amounts of reagents. The machine shakes them (with the help of tiny mixing beads), then the box reads all the tests colorimetrically - it has 6 different color LEDs inside.
The tradeoff is that with such tiny samples, the uncertainty in the parameter is higher than hobbyists have gotten used to. (Limit of Detection: PO4 = 0.2, NO3 = 5)
But if I ran a LFS, and wanted to test customer's water and get a yes/no will it support livestock? This'd be fantastic.
 
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