GroLine Waterproof Portable pH/EC/TDS Meter Kit Compost Tea Up to 90% of phosphorus

Up to 90% of phosphorus in soils is unavailable to the plant

18 inch pot:  2 – paks                      2 Gallon Container:  2 – 3 paks

or 3 ounces per 100 pounds of seed

Improves soil fertility

GroLine Waterproof Portable pH/EC/TDS Meter Kit Compost Tea Up to 90% of phosphorusDesigned to bring simplicity to nutrient testing, the HI9814 Portable GroLine Meter is designed specifically for Hydroponic growers. The specialized electrode combines 3 sensors in a single rugged probe featuring a polypropylene body, integrated temperature sensor, and cloth junction. One combined, pre amplified pH, EC, and TDS (ppm) probe for hassle free measurements. Quick CAL mode for a speedy, single point calibration for pH and EC with one