HM Digital TDS Tester – Pocket-Size Water Quality Meter, Factory Calibrated maifan stones Social mission: Every Gravity Water

Social mission: Every Gravity Water System purchase provides 100 days of clean drinking water to communities living in water poverty

For best accuracy

Thread the stem of the new filter through one of the four holes on the bottom of the upper chamber

The system is entirely gravity-fed — simply fill the upper reservoir and gravity draws water through all five filtration stages into the lower reservoir

5 feet probe cables for extra flexibility when testing

HM Digital TDS Tester – Pocket-Size Water Quality Meter, Factory Calibrated maifan stones Social mission: Every Gravity WaterHM Digital TDS Tester Affordable, Accurate Water Quality Testing The HM Digital TDS Tester is a compact, easy to use meter designed for quick and reliable Total Dissolved Solids (TDS) measurement. Whether you're testing drinking water, monitoring a hydroponic reservoir, checking aquarium water quality, or verifying RO filter output, this pocket sized tester delivers instant results without breaking the budget. Key Features Measures Total Dissolved