pH Meter for Canning Liquid pH Tester Digital pH Reader with Long pH Probe Professional pH Device for kind of Narrow-mouthed Bottle pH Test Kit with ATC Function for Water and Home Brewing {Fermentation pH Meter with Long Electrode}: With 4.6-inch long pH probe, pH tester is suitable for various home fermentation processes. The extended pH electrode design allows for reading pH levels at different depths within the can, preventing pH discrepancies between the surface and deeper layers that can affect the taste of fermented foods. If you need to test pH levels for canned food, kombucha, beer brewing, etc., this pH meter is the best pH testing device. {Lab pH Tester with Thin and Long pH Probe}: Resolution 0.1 pH, Accuracy ±0.1 pH. The pH reader is a high-precision laboratory-grade pH meter suitable for various high-accuracy pH value measurements. Furthermore, its slim pH probe design allows the pH meter to easily measure the pH level of various laboratory containers, eliminating concerns about its inability to measure the pH value of solutions in narrow-mouth bottles, Erlenmeyer flasks, test tubes, etc. {Professional pH Meter for Cosmetics}: The pH meter accurately measures the pH level of cosmetics. The ideal pH for healthy skin is between 4.7 and 5.75. Cosmetics with the correct pH level can prevent skin damage and protect your skin's health. Because shampoos and shower gels with their narrow nozzles that can only accommodate long and thin pH electrodes, this pH meter with its long, thin pH probe is the ideal choice for pH testing. {Digital pH Meter with ATC Function}: The pH reader is designed with a digital backlit display, enabling accurate pH testing even in low-light environments, eliminating the need for complex pH test strip color comparisons and guesswork. Furthermore, it includes automatic temperature compensation, ensuring accurate pH values even in solutions with varying temperatures. More importantly, the lock-read function makes pH testing even more convenient! {Comprehensive Accessories and Services}: The pH meter comes with 6 packets of pH meter calibration powder and 2 bottles of 10mL pH electrode storage solution (3M KCL storage solution), meeting your pH calibration needs for one year and maintaining pH probe stability for added convenience! Furthermore, the screw-on protective cap and sponge design keep the pH probe moist, extending the pH electrode's lifespan. And the team provides accurate product service within 18 hours.