Hanna Instruments GroChek pH/EC/TDS/C Portable Meter w/Cal Check co2 Roots Organics Extreme Serene kelp

Roots Organics Extreme Serene kelp extract can be used in conjunction with any potting soil or hydroponic nutrient program

Pack of 10

560 ounces per gallon]

Grand Finale by Sugar Peak is a convenient one-part finishing formula designed for maximizing production of determinate flowering and fruiting plants

• Resin sealed circuit board for high humidity installations

Hanna Instruments GroChek pH/EC/TDS/C Portable Meter w/Cal Check co2 Roots Organics Extreme Serene kelpHI 9813 6 is a versatile, water resistant, multiparameter portable instrument specifically designed for agricultural applications such as hydroponics, greenhouses, farming and nurseries. This meter features an large LCD that clearly displays the parameter being measured as well as calibration instructions. Calibration is fast and easy with knobs located on the front panel of the instrument. HI 9813 6 includes all the features of the HI 9813 5 while