Review on Highly Accurate and Reliable 3-in-1 Professional Water Test Meter: TDS, EC, and Temperature. Complete with Protective Leather Case. by Mohmed Burt

I received the test meter in just a few days of the order date and got to work checking the water before and after replacing my reverse osmosis test system. As expected, there was a significant difference in the readings of dirty and clean water. I can now regularly check the water quality with a meter instead of my family's taste buds. I'm sure I'll be changing the reverse osmosis filters more often to keep the family and reverse osmosis systems healthy.