US$ 50.00
100 hours of continuous use
Precaution: Store at a cool place
The standard can also be used to calibrate conductivity meters to 5
caterpillars
Amperometric EC/TDS sensor
Hydroponics pH Down Acid 250ml sponge 100 hours of continuous useSafe & Easy to use Acid formulated using food grade Phosphoric acid Basic equipment for any hydroponic system Premium buffering for pH stability Ingredient: Food grade phosphoric acid and water Directions: The ideal pH range for most hydroponic crops is between 5. 5 and 6. 5. Determine the pH of water with a pH meter. Add 1ml of pH DOWN for each 30 liters of waterWait 15 To 30 minutes, take another pH reading before dosing again with pH DOWN. Avoid
US$ 50.00
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US$ 42.00
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