Description
Specification
1. pH value 0-14
2. TDS value 0-200000 ppm
3. EC value 0-200000 dot A / c * m
4. Salinity 0-20%
5. ORP negative potential ± 1999MV
6. H2 rich hydrogen 0-2400РРЬ
7. S. G seawater specific gravity 1.000-1.222
8. Temperature 0 - 60 deg * C
9. Nutrient solution fertility 0-3
10. Resistivity 50 Ω -20 Ω
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