HM Digital TDS Tester – Pocket-Size Water Quality Meter, Factory Calibrated maifan stones The system is entirely gravity-fed

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

Cable: 45″ (114

classroom and more

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

HM Digital TDS Tester – Pocket-Size Water Quality Meter, Factory Calibrated maifan stones The system is entirely gravity-fedHM 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