Bluelab cleaning and calibration sets for bluelab EC Pen, Truncheon, Combo Meter and the Guardian. Everything you need to clean and test conductivity (ppm / EC) / temperature probes.The instrument is only as accurate as the probe is clean. Accurate readings simplify crop management and ensure improved growth. By properly maintaining the ppm/EC probe, you can also maximize the life of the probe and instrument. On the probe surface, the instrument measures the solution. If the surface of the probe is contaminated or contaminated, the readings may be inaccurate. Much like a car's windshield, when it's dirty you can't see! If the surface of the probe is dirty, it cannot read the solution. A tip... If the conductivity is low, the probe must be cleaned.consisting of:
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