Welcome to our page for calibration fluid. As the page name suggests, here you will find all the calibration fluid we sell. We have matching calibration fluids for most of the brands of meters that we sell. For example Bluelab, EUTECH and Hanna. You need calibration fluid to ensure that your meter actually shows the correct pH and EC value, and to know this for sure it is good to calibrate the meter regularly. Take a leisurely look at our offer and choose the calibration fluid right for you.