The M100+™ Laboratory Turbidimeter offers an easy solution for verifying operation of online turbidimeters like the MTOL+. The color touchscreen interface provides fast access to settings, data and calibration functions. Features such as the Auto Alert Calibration Prompt simplify maintenance. With a resolution of up to 0.0001 NTU at low turbidity readings and an extended range up to 4,000 NTU, the M100+ is an ideal and affordable tool for research as well as routine analytical measurements. The M100+ includes a USB port for downloading logged data and firmware updating.