10 In 1 Water Quality Testing Pen Household Tap Water pH Tester Hydrogen Rich Water Quality Testing Pen
PH/TDS/EC/Salinity/TEMP/S.G/ORP/H2/Fertility/Resistivity
1. PH value: 0-14 2. TDS value: 0-200000PPM 3. EC value: 0-2000000㎲/CM 4. Salinity: 0-20% 5. ORP negative potential: ± 1999MV 6. H2 rich hydrogen: 0-2400PPB 7. Specific gravity of S. G seawater: 1.000-1.222 8. Temperature: 0-60 C 9. Nutrient solution concentration: 0-3 10. MΩ resistivity: 50Ω-20ΜΩ