Labnic Ion Concentration Meter is a tabletop device designed for continuous measurement and determination of calcium ion concentration. It has a measuring range of pH from -2.00 to 18.00 and pX from 0.00 to 14.00. Operating on a 12V DC power supply with a 1A current rating, it features a waterproof 6.5-inch LCD screen, durable Omron touch panel, auto-calibration, auto temperature compensation, and data storage.