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Home  >>  Products  >>  pH & Conductivity  >>  M100+ Laboratory Turbidimeter

M100+ Laboratory Turbidimeter

Waterproof ORPTestr ® 10

The M100+™ is a Laboratory Turbidimeter and offers an easy solution for verifying operation of online turbidimeters. 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 - The M100+ prompts the operator when calibration is required
  • Simple Calibration Procedure - Insert the calibration standard and initiate calibration with the press of a button
  • Data Logging - Download historical NTU readings through USB connection or send to a printer or data recorder
  • Infrared and White Light Model Options - Choose EPA 180.1 compliant white light or ISO 7027 infrared model
  • Reusable ProCal Calibration Standards - Quick, easy calibration across all ranges without need to mix Formazin


Technical Data

Technical Data
Range: Auto ranging from 0 - 4000 NTU
Measurement Principle: Nephelometric below 1000 NTU / Ratio above 1000 NTU
Accuracy: % of reading or ±0.02 NTV below 40 NTU, whichever is greater ±5% of reading above 40 NTU
Resolution: Selectable up to 0.0001 NTU
Response Time: 3 seconds
Sample Size: 30 ml (27 ml minimum)
Light Source: White light (tungsten filament, krypton gas filled) or Infrared (860nm LED)
Operating Temperature: 1°C - 40°C (34°F - 104°F)
Outputs: USB
Dimensions: 10.75 x 10 x 3.75 in. (27.3 x 25.4 x 9.5 cm)
Weight: 2.9 lbs. (1.32 kg)
Safety Rating: UL, CSA (LC mark), CE



Prices subject to change    Prices listed in US dollars for domestic shipments within US, Canada, & Mexico only    Export orders require quotations - click here for a quote     For more info call us 1-800-762-2478 or 954-946-9454.
Item Number Item Prices
TU-250110 M100+ White Light Laboratory Turbidimeter, 100 - 240 VAC $1,785.00
TU-250115 M100+ IR Laboratory Turbidimeter, 100 - 240 VAC 1,785.00
TU-2531 Cuvette 28 x 70 mm 3/pk (replaces 28 x 93 mm) use for grab sample. Includes threaded light shield caps. 82.00
TU-2533 Cuvette 28 x 70 mm 10/pk (replaces 28 x 93 mm) use for grab sample. Includes threaded light shield caps. 213.00
TU-2535 Formazin Stock Solution Kit - Primary Calibration - each kit contains: 32 onces of 4000 NTU Formazin, one gallon 0.02 NTU Reference Standard, four cuvettes with indexing light shields, three pipettes and instruction manual 389.00
TU-2537 Replacement Lamp Assembly IR Light 86.00
TU-2539 Lamp assembly for white light models 107.00
TU-2541 ProCal Primary Calibration Standard - 10 NTU 91.00
TU-2543 ProCal Calibration Kit (0 - 4000 NTU) 261.00
TU-2545 ProCal Primary Calibration Kit, Full Range, .02, 10, and 1000 NTU 261.00


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