



MW10 Digital Free Chlorine Tester
The MW10 Free Chlorine Photometer lets you go digital with your testing. No more hit and miss testing with strips.
The Milwaukee MW10 Digital Free Chlorine Tester is used to accurately measure free chlorine levels in water for effective water treatment, pool maintenance, and environmental monitoring.
Great for agriculture, aquariums, aquaculture & coral, labs, water treatment, classroom and more. 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.
Simply add the reagent and get a digital reading accurate to ±0.03 ppm within minutes.
DESIGN FEATURES
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Fast, easy-to-read results with large digital LCD readout.
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Range from 0.00 to 2.50 ppm.
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Accurate to ±0.03 ppm or ±3% of reading @ 25 °C.
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Small and ergonomic design.
SPECIFICATIONS
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Range: 0.00 to 2.50 ppm
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Resolution: 0.01 ppm
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Accuracy: ±0.03 ppm or ±3% of reading @ 25 °C
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Typical EMC Dev: ±0.01 ppm
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Light Source: Light Emitting Diode @ 525 nm
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Light Detector: Silicon Photocell
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Method: Adaptation of USEPA method 330.5 - the reaction between free chlorine and the DPD reagent causes a pink tint in the sample.
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Environment: 0 to 50°C (32 to 122 °F) max. 95% RH non-condensing
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Battery Type: 1 x 1.5V AAA
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Auto-shut off: After 2 minutes of non-use
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Meter Dimensions: 3.2 x 2.4 x 1.5 inches (81.30 x 61 x 38.1 mm)
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Meter Weight: 0.14 lbs. (0.18 kg)
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Packaged Dimensions: 4.53 x 4.53 x 3.31 inches (115 x 115 x 84 mm)
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Packaged Weight: 0.4 lbs, (0.18 kg)
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No calibration needed.
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Reliable and repeatable measurements with no visual assessment.
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Runs on 1 x AAA battery with auto shut off to extend battery life.
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Adaptation of the USEPA Method 330.5. The reaction between Free Chlorine and DPD causes a slight pink tint in the sample.
The Milwaukee MW10 Digital Free Chlorine Tester is used for accurately measuring free chlorine levels in various water sources. It is essential for water treatment professionals to ensure optimal disinfection in municipal and industrial systems. Pool and spa operators use it to maintain safe chlorine levels for clean and healthy recreational water. Additionally, environmental scientists rely on it for monitoring chlorine concentrations in natural water bodies to assess water quality. Its precision and ease of use make it valuable for both routine checks and detailed water quality analysis in different settings.
SPECIFICATIONS
-
Range: 0.00 to 2.50 ppm
-
Resolution: 0.01 ppm
-
Accuracy: ±0.03 ppm or ±3% of reading @ 25 °C
-
Typical EMC Dev: ±0.01 ppm
-
Light Source: Light Emitting Diode @ 525 nm
-
Light Detector: Silicon Photocell
-
Method: Adaptation of USEPA method 330.5 - the reaction between free chlorine and the DPD reagent causes a pink tint in the sample.
-
Environment: 0 to 50°C (32 to 122 °F) max. 95% RH non-condensing
-
Battery Type: 1 x 1.5V AAA
-
Auto-shut off: After 2 minutes of non-use
-
Meter Dimensions: 3.2 x 2.4 x 1.5 inches (81.30 x 61 x 38.1 mm)
-
Meter Weight: 0.14 lbs. (0.18 kg)
-
Packaged Dimensions: 4.53 x 4.53 x 3.31 inches (115 x 115 x 84 mm)
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Packaged Weight: 0.4 lbs, (0.18 kg)
MW10 - Free chlorine handy photometer, range: 0.00 to 2.50 mg/L of Cl2 , accuracy: 3% of reading.
Supplied in carton box including 2 cuvets, reagents and instruction manual.

Frequently Asked Questions
Clear answers to help you choose the right water testing solution with confidence
Which brands of water testing kits do you supply?
Do you provide kits for both home and professional use?
Yes — whether you’re a pool or spa owner, aquarium keeper, utility company, or a university laboratory, we have the right solution for your needs.
Can I arrange servicing or calibration for my photometer?
Absolutely. We also provide servicing and calibration to keep your photometers accurate and reliable.
How quickly do you dispatch orders?
Orders placed before 2:30 pm (Monday–Friday) are dispatched the same day. We also ship on Saturdays for your convenience.
Which couriers do you use for delivery?
We deliver through UPS, DPD, and Royal Mail. You can also choose to upgrade to next-day delivery at checkout.
What is your return policy?
We accept returns within 14 days of delivery provided the items are unused, in their original packaging, and in resalable condition. Please contact our team before returning any items.
Can I place bulk or business orders?
Yes, we welcome bulk, trade, and institutional orders. For tailored pricing or large quantities, please get in touch with us directly.
How can I get help if I’m unsure which kit to buy?
You can call us at 📞 +44 (0)115888 2726 and our team will guide you in choosing the most suitable kit for your needs.