Digital Lcd Ph Test Pen, Automatic Calibration Of Aquarium Water

The large backlit LCD screen with large fonts clearly displays the values at a glance.Removable battery compartment for large-capacity battery, universal LR44 button battery, easy to replace the battery, long-term use.High-precision probe, high sensitivity of the bulb, and protective liquid in it, effectively prolonging the life of the electrode.The PH value label on the back is more convenient for reference to understand the pH of the water.Colour: yellowMaterial: ABSPackage Contents:1 * Test penOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.