Grockek Combo.
Grockek Combo. Grockek Combo.
Our price: $239.95

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GROCHEK COMBO by HANNA. This unit incorporates pH, temperature, and EC readings all in one package. Simply install the meter above the reservoir and insert the electrodes into the solution for continuous readings. TDS measurements are defined as 700 ppm = 1 EC. Range of pH is 0-14 and ppm is 0-2000. Hanna Part #HI9813-6.