Mi406 - Free Chlorine Professional Photometer

Milwaukee provides a range of chlorine photometers for all applications.
SKU: Mi406
Manufacturer part number: Mi406

Milwaukee provides a range of chlorine photometers for all applications: swimming pool treatments, household cleaners, dishwasher additives, laundry powders/liquids and cooling water treatment products all contain chlorine as an oxidizing biocide. Drinking water contains residual chlorine to maintain water purity throughout the supply lines.

Milwaukee offer the Mi406 microprocessor-based instrument with greater resolution, better accuracy and immediate results, for measuring free chlorine (0.00 to 5.00 mg/L).


Free Chlorine Range 0.00 to 5.00 mg/l Cl2
Free Chlorine Resolution 0.01 mg/l (0.00 to 3.50 mg/l); 0.10 mg/l (above 3.50 mg/l)
Free Chlorine Accuracy ±0.04 mg/l @1.50 mg/l
Method adaptation of the USEPA method 330.5 and Standard Method 4500-Cl G
Light Source tungsten lamp
Light Detector silicon photocell and 525 nm narrow band interference filter
Environment 0 to 50°C / 32 to 122°F; max RH 100%
Battery Type 1 x 9V (included)
Auto-off after 10 minutes of non-use
Dimensions 192 x 104 x 52 mm
Weight 380 g


Mi506-100 Free Chlorine reagent set (100 tests)
Mi0001 Glass cuvets (2 pcs)
Mi0002 Caps for cuvets (2 pcs)
Mi0003 Stoppers for cuvets (2 pcs)
Mi406 is supplied complete with 2 cuvets, reagents, hard carrying case, wiping tissue, 9V battery and instructions.
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