Hanna Industrial Grade pH/TDS Controller w/Proportional Control of Fertilization Garden Accessories they are a collection of

they are a collection of different compounds all with similar characteristics

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

Amend any potting soil with this micronized vegetative nutrient to activate the aromatic power of your garden’s natural terpenes

Modern design with rugged fire retardant enclosure

If the growth rate ever slows down in the middle of your plant’s cycle

Hanna Industrial Grade pH/TDS Controller w/Proportional Control of Fertilization Garden Accessories they are a collection ofAdd 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