Labnic Ion Concentration Meter is a tabletop device for continuous fluoride ion measurement with a measuring range of -2.00 to 18.00 pH, 0.00 to 14.00 pX, and an automatic temperature compensation range of 0 °C to 100 °C.It features a waterproof 6.5-inch LCD, a long-lasting Omron touch panel, auto-calibration, temperature compensation, data storage, and ppb ion/reference electrodes.