[500mL Large Capacity Bottles] More solution, more calibrations! Each bottle contains 500mL (16.9oz) of high-quality calibration liquid, providing ample supply for frequent use.
[Pre-Mixed & Ready to Use] No need to mix pH calibration powder! Achieve highly accurate pH readings effortlessly with UIUZMAR Pre-Mixed pH calibration solution. The buffer solution saves the hassle of mixing pH powders, offering quick, out of the box calibration for digital pH meters.
[Highly Accurate & Stable] Formulated for consistent and reliable pH calibration, ensuring precise measurements for pH meters used in hydroponics, pools, aquariums, brewing, and laboratory testing.
[Convenient & Quick Calibration] A calibration measuring cup is included with the solution, just pour the solution into a cup, insert your pH meter, and calibrate effortlessly. No extra preparation required!
[4.00 /7.00 pH Calibration Solutions] Features both acidic (pH 4.00) and neutral (pH 7.00) buffer solutions for accurate two-point calibration of pH testing devices. Compatible with most pH meters, pens, and probes available in the market for reliable calibration results.