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1300 662 720

Customer Support

1300 662 720

Customer Support

1300 662 720

Customer Support

Milwaukee EC, Conductivity & TDS Meters

Milwaukee Instruments EC, conductivity and TDS meters, sold and supported in Australia by
Milwaukee Meters. Choose an economy TDS or EC pen, a waterproof tester with a replaceable electrode, a portable meter, a logging bench meter, or an EC monitor for nutrient tanks. Low and high range versions of most models, local stock and calibration solutions.

ALL PRICES IN THIS WEBSITE ARE EXCLUSIVE OF AUSTRALIAN GST
GST will be added at the checkout for all online orders

Choosing a Milwaukee EC or TDS meter

Every Milwaukee meter here measures conductivity. TDS models show the same reading
converted to ppm. Most models come as a low range and a high range pair. Choose low range
for drinking, RO and hydroponic water, and high range for brackish water, nutrient concentrates and process water. Then choose the form: a pen, a waterproof tester, a portable meter on a cable, or a bench meter.

Pocket EC and TDS pens and testers

ModelMeasuresRangeGood to
know
CD97 / CD600 / CD610TDS0–999 / 0–1990 /
0–10,000 ppm		Economy pens, ATC, manual calibration
CD601 / CD611EC0–1990 / 0–20,000
µS/cm		Economy pens, ATC, manual calibration
T75 / T76TDS0–1999 / 0–9990
ppm		Waterproof IP65, replaceable electrode
C65 / C66EC0–1999 µS/cm / 0–10.00
mS/cm		Waterproof IP65, replaceable electrode
EC59 / EC60 PROEC, TDS, temp3999 µS/cm / 20.00 mS/cmWaterproof; EC60 PRO calibrates automatically
EC40EC, CF, ppm0.2–4 mS/cmNutrient meter for hydroponics; ppm on 0.5 or 0.7 scale
MW803 MAX / MW804 MAXpH, EC, TDS, temp3999 µS/cm / 20.00 mS/cmWaterproof 4-in-1 tester, replaceable probe

Portable meters

ModelMeasuresRangeGood to
know
MW301 PRO / MW302 PROEC0–1990 µS/cm /
0.0–10.0 mS/cm		Probe on a cable, ATC
MW401 PRO / MW402 PROTDS0–1999 ppm /
0.0–10.0 g/L		Conversion factor 0.5, ATC
MW801 PRO / MW802 PROpH, EC, TDS1990 µS/cm /
6.00 mS/cm		3-in-1 combination meter
MW805 MAX / MW806 MAXpH, EC, TDS, temp4000
µS/cm / 20.00 mS/cm		IP67, data logging, USB
MW306 MAXEC, TDS, salinity, tempUp to 500
mS/cm		IP67, data logging, USB

Bench meters and monitors

ModelMeasuresRangeGood to
know
MW170 MAXEC, TDS, salinity, tempUp to 500
mS/cm		Logging bench meter, MA814DB/1 EC/temp probe
MW180 MAXpH, ORP, EC, TDS, NaCl, tempUp to 500
mS/cm		6-in-1 laboratory bench meter
MC310 PROEC (monitor)0.0–10.0 mS/cmContinuous display for nutrient tanks

Hydroponics and nutrient tanks

Growers usually start with the <a href=”https://www.milwaukeemeters.com.au/ec40-nutrient-meter-for-hydroponics/”>EC40 nutrient meter, which reads EC, CF and ppm, or the <a href=”https://www.milwaukeemeters.com.au/mw803-ec-tds-temperature-tester/”>MW803 MAX if they also want pH. For a reading that stays on the tank, the <a href=”https://www.milwaukeemeters.com.au/milwaukee-mc310-conductivity-monitor/”>MC310 PRO EC monitor displays EC continuously and the <a href=”https://www.milwaukeemeters.com.au/mc311/”>MC311 PRO EC controller also doses.
See all conductivity and TDS monitors and controllers.

Calibration solutions and probes

Check EC meters with 1413 µS/cm or 12.880 mS/cm solution and TDS meters with 1382 ppm or 6.44 ppt solution, all in calibration standards. Spare EC/TDS probes for the portable and bench meters are in <a href=”https://www.milwaukeemeters.com.au/probe-and-electrode/”>probes and electrodes.
For pH-only meters, see the <a href=”https://www.milwaukeemeters.com.au/ph-meter-ph-testers-and-orp-meter/”>Milwaukee pH & ORP meter range.

Comparing Milwaukee with other brands?

Milwaukee Meters is part of Pacific Sensor Technologies. To compare Milwaukee with Hanna and other brands, see Pacific Sensor Tech’s conductivity and EC meter range, its <a href=”https://www.pacificsensortech.com.au/water-quality-meters/tds-meter/”>TDS meter range, or its <a href=”https://www.pacificsensortech.com.au/water-quality-meters/salinity-meter/”>salinity meters.

Frequently Asked Questions

Which Milwaukee meter is best for hydroponics?

The EC40 nutrient meter reads EC from 0.2 to 4 mS/cm, CF from 2 to 40 and ppm on a 0.5 or 0.7 scale, which covers most nutrient solutions. The MW803 MAX adds pH in one waterproof tester. For a tank that needs a constant reading, the MC310 PRO monitor displays EC continuously and the MC311 PRO controller doses to a set point.

What is the difference between the low range and high range models?

Low range models, such as the CD601, C65, MW301 PRO and EC59, read up to about 2,000 to 4,000 μS/cm with finer resolution. They suit drinking, RO and hydroponic water. High range models, such as the CD611, C66, MW302 PRO and EC60 PRO, read up to 10 to 20 mS/cm for brackish water, nutrient concentrates and process water.

What TDS conversion factor do Milwaukee meters use?

The MW401 PRO and MW402 PRO convert conductivity to TDS with a factor of 0.5. The MC410 PRO TDS monitor uses 0.7. The EC40 lets you choose a 0.5 or 0.7 ppm scale. Use the same factor as your nutrient chart or water report, because the two scales give different ppm numbers for the same water.

How do I calibrate a Milwaukee conductivity or TDS meter?

Use a calibration solution close to the values you measure: 1413 μS/cm or 12.880 mS/cm for EC, and 1382 ppm or 6.44 ppt for TDS. Rinse the probe, immerse it in fresh solution and adjust or confirm the reading. The CD-series pens and the T75, T76, C65 and C66 testers calibrate manually. The EC60 PRO calibrates automatically.

Which Milwaukee meters measure pH as well as EC and TDS?

The MW801 PRO and MW802 PRO portable meters, the MW803 MAX and MW804 MAX waterproof testers, the MW805 MAX and MW806 MAX logging meters, and the MW180 MAX bench meter, which also reads ORP and salinity.

Which Milwaukee meters measure salinity?

The MW306 MAX portable meter and the MW170 MAX bench meter read salinity as % NaCl, PSU and g/L alongside EC and TDS. The MW180 MAX bench meter reads NaCl too. For quick salinity checks, Milwaukee also makes salinity refractometers.