IntelliCALⓇ LDO101 is a digital, luminescent/optical dissolved oxygen (LDO) probe. The laboratory version is available with a 1 or 3 meters cable. The LDO101 is fitted with an automatic pressure sensor module and a temperature sensor. LDO101 probes are fully calibrated at the factory. New LDO101 probes no longer require iButtonsⓇ. The days in use tracking feature and the remaining sensor cap life reminder are initialized on the day of first use. The LDO101 is ideal for measuring dissolved oxygen in wastewater, drinking water and general water quality applications.