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M100 Plus

M100+ Laboratory Turbidimeter for Verifying Operation of Online Turbidimeters

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.


  • Auto Ranging from 0 to 4000 NTU Instrument senses the turbidity level of sample and automatically adjusts the measurement range
  • Calibration Alert prompts the operator when calibration is required
  • Simple Calibration Procedure, initiate calibration with the press of a button
  • Includes a USB port for downloading logged data and firmware updating

Select a Model

Select options below to identify the UPC, Order Code, and Repair Kit for a specific M100 Plus

Approval/Certification Information

For product-specific approval information, please refer to the product’s specification sheet or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites: