Description
HM Digital SM 1 In Line TDS Monitor 0 9990 ppm Digital Water Quality Tester MC811US 5–50°C 41–122°F SP6 GR double junction ORP probe Built to last with 5–50°C 41–122°F extends probe life
HM Digital SM 1 In Line TDS Monitor 0 9990 ppm Digital Water Quality Tester MC811US 5–50°C 41–122°F SP6 GR double junction ORP probe Built to last with 5–50°C 41–122°F extends probe life