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Milwaukee MI404 Free & Total Chlorine PRO Photometer

Product Code: Mi404-P
  • Now £335.00
  • (Delivery from £8.95)
  • RRP £591.40
Item in Stock | Usually dispatched within 24 hours

Milwaukee MI404 Free & Total Chlorine PRO Photometer


Milwaukee MI404 PRO Photometer is for users demanding fast, reliable, repeatable results with ease of use.

Product Details

RANGE: 0.00 to 5.00 mg/L (Cl2)


RESOLUTION: 0.01 mg/L (0.00 to 3.50 mg/L) | 0.1 mg/L (above 3.50 mg/L)

ACCURACY: ±0.06 mg/L @ 1.50 mg/L



  • Fast easy to read results with large digital LCD readout.
  • Accurate to ±0.06 mg/L @ 1.50 mg/L and a range 0.00 to 5.00 mg/L of Cl2.
  • Lightweight and portable.
  • Easy measurement: just mix the reagent in the sample, gently shake, insert the cuvette, zero the meter then press read.
  • Simple easy reagent packets or liquid bottles.
  • Easy 1-2-3 instruction steps.
  • Auto shut off after 10 minutes of non-use, 9 volt (battery included).
  • Adaptation of USEPA Method 330.5 and Standard Method 4500- CL G.



The Milwaukee MI404 PRO Photometer features manual zero point calibration and fast operation in a rugged design.

The Milwaukee PRO Photometer is ideal for users in pools, brewing, winemaking, and hydroponic applications. This meter is also ideal for educators that want their students to learn the basics of water quality analysis to apply in the real world. 

The Milwaukee PRO Photometer offers:


The MI404 microprocessor delivers fast results with an accuracy of ±0.06 mg/L @ 1.50 mg/L and is repeatable. 


This rugged meter is designed to take knocks. It's low maintenance design paired with easy to use reagents makes the MI404 ideal for everyone from educators and pool professionals to brewers and growers.


MI404 has a built-in timer that ensures the appropriate reaction time is used for the chemical reaction. At the end of the timer, the meter will automatically take the reading. This feature ensures consistency across multiple users.


The MI404 has a built-in indexing indent on the meter - The meter has an indent that 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. 


The MI404 has built-in error messaging display alerts. This 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 to ensure the user has the most accurate error-free readings.


The MI404 has a simple to use zero point calibration. Simply insert the unreacted sample cuvette into the chamber, index the cuvette and press the zero button. Your calibration is complete.


To fulfill your order as quickly and efficiently as possible, we sometimes will split your order into a number of different packages so that we could take advantage of the items in stock at different warehouses.  Items you order from Complete Safety Supplies may sometimes be sent in more than one delivery. For example, you may receive multiple deliveries if your order contains an oversized item that needs to be dispatched separately. Regardless of the number of deliveries you receive, you'll only be charged the amount that was originally quoted to you at the time you placed your order. Orders will only receive one delivery charge. 

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Hand Held Photometers
Packaged Weight:1.5 kg
Meter Weight:1.22 kg
Packaged Dimensions:305 mm x 280 mm x 115 mm
Meter Dimensions:191 mm x 107 mm x 51 mm
Auto-shut off:after 10 minutes of non-use
Battery Type:1 X 9V (included)
Environment:0 to 50 C 32 to 122 F / Max. RH 100%
Method:adaptation of USEPA method 330.5 & Standard Method 4500-Cl G
Light Source:Tungsten Lamp
Light Detector:Silicon photocell and 525 nm narrow band interference filter
Resolution:0.01 mg/L (0.00 to 3.50 mg/L)
Accuracy:± 0.06 mg/L @ 1.50 mg/L
Range:0.00 to 5.00 mg/L of Cl2