Combo (HI991404)

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The HANNA pH EC TDS Meter continuously monitors the three most crucial nutrient parameters in hydroponic, greenhouse and horticultural applications. Includes a large, dual level, back-lit LCD to give instantaneous readings, even from a distance.

The HI 991404 ships complete with a non-clog double junction pH electrode and a rugged conductivity/ TDS sensor, 12 volt power transformer and buffer solutions 4 and 7 together with conductivity calibration solution. Warranty: 2-years (six months on electrode).

Instruction Manual (PDF)

Grower’s Tip:
To prolong the life of the electrode, we recommend washing it monthly by immersing it in cleaning solution (HI 7061) for half an hour.