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Dr. Lyn 3 in 1 TDS Pen Zero Water Quality PPM Tester Meter - 0-5000 PPM - for Hydroponics Growing Reverse Osmosis System - Aquaculture Colloidal Silver Beer Wine Pool Hardness Salinity - Leather Case?
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By popularity on Reddit, this product is:
#107
in
Lab pH Meters
1 review of this product found across Reddit:
1 point
·
16th Feb 2017
He can test water quality with something like this. It uses electric pulse to test what percentage of the water isn't actually water molecules, meaning it's something else (like inorganic elements).
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