• Professional use of pH electrodes for aquariums: complete set for calibration
• Easy to use: fill calibration solutions into cuvettes. Immerse pH electrode in calibration solutions according to instructions and rinse afterwards
• pH electrodes need to be readjusted (calibrated) every 30 - max. 60 days. To do this, they are immersed in calibration liquids with a given pH value and the device then readjusts itself
• Only 5-10 ml calibration liquid is needed per calibration procedure. Then rinse with distilled water (included in the set)
• Package contents: calibration set for pH electrodes, incl. calibration solution pH 7 and pH 4 (50 ml each), distilled water for rinsing (50 ml), 3 cuvettes.

Healthy fish and plants
The acidity defines the pH value of the water. It needs to be constantly checked then adjusted as necessary to maintain the health of the fish and plants. The right pH value depends on the fish stock of the aquarium. A wrong pH value can cause stress and diseases. Using an electrode, the value can be precisely measured.

Cleaning and care of electrodes
Bacteria, lime and other impurities which settle on the electrode can falsify the real pH value. The regular cleaning and calibration of the electrode ensure precise measurement and an unaltered pH value.

Easy to use
Fill 10 ml of each of the two calibration liquids (pH 7 and pH 4) into cuvettes. Fill the third cuvette with distilled water. Remove the electrode from the aquarium and dry it. Immerse the electrode in the calibration solutions in the order given in the instructions, rinsing each time. The complete set contains all the liquids required for the professional and regular calibration.