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To be used as part of a complete fertilization program through all stages of plant development
Easy to Read LCD
waterproof combination tester has an easy to read LCD and an automatic shut-off
By using naturally occurring plant and biological compounds
This pest control product is very effective in killing caterpillars and worms
Hanna Industrial Grade pH/TDS Controller w/Proportional Control of Fertilization growing-accessories To be used as partAdd 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
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