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• Highest output of PAR light (2100 μmol/s) promotes photosynthesis
User notification for environmental and irrigation alerts
corrosion and are BPA free
extracted from a mine known to produce the highest quality shale
this scale could quite possibly last for an eternity
Hanna Industrial Grade pH/TDS Controller w/Proportional Control of Fertilization special-order • Highest output of PARAdd this 2 in 1 pH and TDS controller engineered for economical dosage of fertilizer solutions in hydroponics to your growroom. The product measures pH from 0 to 14 and TDS from 0 to 1999 mg L (ppm). Two separate set points can be adjusted from 4 to 7 pH and 900 to 1800 ppm (mg L). The relays are activated when the pH exceeds the set point or TDS falls below the desired value. Two pumps or electrovalves can be wired directly to the controller and be
