Hanna Industrial Grade pH/TDS Controller w/Proportional Control of Fertilization fluorescent-lighting these fans move air in

these fans move air in a coherent horizontal pattern creating a gentle 'racetrack' air flow pattern needed in greenhouses to maximize heat distribution and humidity control by mixing the air

and intracanopy configurations

optimum heat management

Additional natural veganic ingredients have also been added to facilitate high metabolism and growth rates in all plants

commercial booster pump designed for continuous use

Hanna Industrial Grade pH/TDS Controller w/Proportional Control of Fertilization fluorescent-lighting these fans move air inAdd 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