Review on Digital Water Testing Kit - Ruolan Lab pH Meter, TDS and PPM Tester for Hydroponics and Water Analysis by Cara Dudas
Very dissatisfied: pH test
We bought about 15 sets I think. Due to the Covid issue we only recently opened the box. We sent them to our staff in Mexico for them to use in the field. 4 blocks did not work and were not calibrated. Now it is more expensive for us to ship them back to return them. We are very disappointed.
- Easy to read control panel
- Clarity
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