Milwaukee MI405 Ammonia Medium Range PRO Photometer

SKU: 9139-MI405~ea

Milwaukee MI405 Ammonia Medium Range PRO Photometer

SKU: 9139-MI405~ea
Regular price $395.46 CAD
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Milwaukee MI405 Ammonia Medium Range PRO Photometer

Milwaukee MI405 PRO Photometer is easy and quick to use, with a rugged design made to take knocks. Designed for use in water treatment and conditioning, such as aquaculture, environmental, laboratory and educational applications.

Low maintenance design is paired with easy-to-use reagents. Featuring a built-in indexing indent on the meter which allows for a lock and key fit with the cuvette cap.  This ensures that the cuvette is indexed consistently (same position) in order to maintain the same path length for accurate results. Includes built-in timer that ensures appropriate reaction time is used for the chemical reaction.  At the end of the timer, the meter will automatically take the reading ensuring consistency across multiple users.

The low maintenance design is paired with easy-to-use reagents - just mix the reagent in the sample, gently shake, insert the cuvette, zero the meter, and then press read.


  • Built-in error messaging display:  helps the user ensure no mistakes are made in the testing process.  Messages include no cap, over range and under range, light source errors, and zero cal error.   
  • Zero-point calibration:  Simply insert the unreacted sample cuvette into the chamber, index the cuvette, and press the zero button.
  • Auto shut off: after 10 minutes of non-use, 9-volt battery included.


Ammonia Photometer, Medium Range: 0.00 to 9.99 mg/L of (NH3-N)
Resolution: 0.01mg/L
Accuracy: ± 0.30 mg/L @ 5.00 mg/L
Light Source: Blue LED 466 nm
Light Detector: Silicon photocell and 466 nm narrow band interference filter
Operating Environment: 0 to 50 C 32 to 122 F / Max. RH 100%
Method: Adaptation of The Nessler Method
Battery Type: 1 X 9V (included)
Auto-off: after 10 minutes of non-use
Meter Dimensions: 7.5 x 4.1 x 2.0 inches (192 x 104 x 52 mm)
Meter Weight: 0.84 lbs. (0.38 kg)
Packaging Dimensions: 12 x 11 x 4.5 inches (305 x 280 x115 mm)
Packaging Weight: 2.73 lbs. (1.24 kg)
Glass Cuvettes:  MI0001 (2 x included)


Milwaukee MI405 Manual

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