Bluelab Probe Care Kit â pH and Conductivity Features - PH - 1) clean the probe tip with the ph probe cleaner and toothbrush 2) Hydrate monthly, and ensure the storage cap contains KCI storage solution after every use 3) calibrate the ph probe to two points : PH 7.0 and PH 4.0 CONDUCTIVITY - 4) Clean probe tip with probe cleaner and chamois to remove nutrient build up 5) Test in 2.77 EC Conductivity standard solution to ensure accuracy. Clean again if reading is not as expected 6) Calibrate if neccessary (Bluelab Conductivity Pen and Bluelab Pro Controller only) |