Don't know what gone wrong with this product used it for some time it's never been truly accurate but ok but the latest two batches I used are totally unacceptable they are miles out I do my normal water tests as well as digital the only accurate reading was kh /gh the rest rubbish for instance ph on the strips 6.6 normal extensive tests shows 7.4 say no more.untill JBL gets it right again I have stopped using this method update I have now changed the colour card for a new one the results are more in keeping with the traditional test
Verified purchase: Yes | Condition: New
Results vary greatly depending on the lighting. I can conduct two tests minutes apart and then do a reading in different lights. Both times with no shadows. And I get different readings But it’s a quick way to do a test when I suggest something might be wrong
Verified purchase: Yes | Condition: New
This an underrated product. It is better than using drops. So long as there are no shadows or any other things so the app can get a clear look, it is easy and informative about tank water quality.
Verified purchase: Yes | Condition: New
Easy usage, possibility to keep track of measurements.
Verified purchase: Yes | Condition: New
I use this every time I check my water quality. A bit expencive but aquriate results.
Verified purchase: Yes | Condition: New
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