a built-in self calibration function and an integrated photocell that enables operation in daytime hours only
outdoor ambient operating range: (Cooling = 5°F to 122°F)
Recommended dosage: 5–10 mL per gallon of water
EC and TDS meters (NaCl scale or the 442 scale)
Carefully mined from one of the world’s richest deposits
Growmore 0-37-37 Blue Reservoirs a built-in self calibration functionGrow More (0 37 37) is a sophisticated water soluble fertilizer. It contains calcium, magnesium, DTA EDDHA iron, carbohydrates, amino acids, soluble seaweed powder, soy protein nitrogen, along with essential plant nutrients. It is suitable for use in soilless, hydroponic systems, organic soils, and coco coir systems.