Hanna Industrial Grade pH/TDS Controller w/Proportional Control of Fertilization Garden Accessories or apply it directly in

or apply it directly in a planting hole – using the rate of one teaspoon for every one gallon of water

Removes water down to 1/8"

The Seabird Gauno delivers the big phosphorous and calcium push necessary to maximize yield

Comes in a heavy-duty

• This nutrient-rich blend is great for indoor and outdoor container plantings

Hanna Industrial Grade pH/TDS Controller w/Proportional Control of Fertilization Garden Accessories or apply it directly 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