Specification
1. pH value 0-14
2. TDS value 0-200000 ppm
3. EC value 0-200000 Å/cm
4. Salinity 0-20%
5. ORP negative potential ± 1999MV
6. H2 rich hydrogen 0-2400PPb
7. S.G seawater specific gravity 1.000-1.222
8. Temperature 0-60 ℃
9. Nutrient solution fertility 0-3
10. Resistivity 50 Ω -20 Ω
