ISM sensors are digital analytical sensors for measuring pH, dissolved oxygen, dissolved CO2, ozone, conductivity and total organic carbon. ISM sensors use a technology that is unique from other digital sensor technologies, in that ISM sensors provide adaptive, predictive diagnostics that tell you the number of days remaining until you need to calibrate or replace your sensor. The predictive diagnostics in ISM sensors are derived from sensor and process conditions, and adapt based on how conditions change. In addition to predictive diagnostics, ISM sensors provide a strong digital signal that resists interference, they have the ability to capture critical data for record keeping, and feature Plug and Measure, which simplifies sensor startup, replacement and commissioning.