Hanna GroChek pH & TDS Combo Continuous Reading Meter
The Gro-Chek Combo meters measure both pH and TDS at the same time. They are supplied with professional probes specially designed for the grower. To protect your investment, the user selectable set points and the visual alarm signals provide an additional guarantee against abnormal status. The probes are submerged so that they have a real-time readout, without preparation or having to wait. Calibration at 1 or 2 points, no need for batteries, ground loop probe and much more. Uses the 1500ppm calibration solution sachets.
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