Facebook-f Linkedin Youtube
Facebook-f Linkedin Youtube
  • sales@milwaukeemeters.com.au

1300 662 720

Customer Support

1300 662 720

Customer Support

1300 662 720

Customer Support

Milwaukee pH & ORP Meters

Milwaukee Instruments pH meters and pH/ORP meters, sold and supported in Australia by Milwaukee Meters. Choose a waterproof pocket tester or pH pen with a replaceable electrode, a portable meter for field work, a laboratory bench meter, or a pH or ORP controller. All are backed by local stock, a 12-month meter warranty, spare probes and calibration buffers.

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

Choosing a Milwaukee pH meter

Milwaukee Instruments makes water-analysis meters. It is not related to Milwaukee Tool. The pH range comes in four forms: pocket testers you dip straight into a sample, portable meters with a probe on a cable, bench meters for the lab, and monitors or controllers that stay on a tank or pool. Pick the form first, then the resolution and the extra parameters you need.

Pocket pH testers and pH pens

ModelMeasuresResolutionGood to know
pH600AQpH0.1 pHEconomy tester, 1-point
manual calibration
pH51pH0.1 pHWaterproof; replaceable double-junction electrode; manual 1–2 point calibration
pH54 PROpH0.01 pHAs pH51 with 0.01 pH resolution
pH55 PROpH, temperature0.1 pH-2.0 to 16.0 pH, IP65, automatic calibration

pH56 PROpH, temperature0.01 pH-2.00 to 16.00 pH, IP65, automatic temperature compensationpH58 MAXpH, ORP, temperature0.01 pHOnly
pocket tester that also reads ORPMW803 MAX / MW804 MAXpH, EC, TDS, temperature0.01 pHMW803 EC to 3999 µS/cm; MW804 EC to 20.00 mS/cm.

Portable pH meters

ModelMeasuresGood to know
MW100 / MW101 PROpH0.1 / 0.01 pH; manual temperature
compensation; SE220 probe on MW100
MW102 PROpH, temperature-2.00 to 16.00 pH, 0.01 pH,
automatic temperature compensation
MW102-FOOD PRO / MW102 Wine Kit PRO / MW101-SOIL PROpH (+ temp)Probe and kit matched to food, wine or soil samples
MW105 MAX / MW106 MAXpH, ORP, temperatureIP67; MW106 logs data. Supplied probe reads pH; ORP needs the MA921B/2 probe, sold separately
MW801 PRO / MW802 PROpH, EC, TDSMW801 EC to 1990 µS/cm; MW802 to 6.00 mS/cm
MW805 / MW806 MAXpH, EC, TDS, temperatureMW805 EC to 4000 µS/cm; MW806 to 20.00 mS/cm

Bench meters

ModelMeasuresGood to know
MW150 MAXpH, ORP, temperature±0.01 pH, up to 3-point automatic calibration
MW151 MAXpH, ORP, temperatureAs MW150 with data logging
MW160 MAXpH, ORP, ISE, temperatureLogging; adds ion-selective measurements
MW180 MAXpH, ORP, EC, TDS, NaCl, temperature6-in-1 laboratory bench meter

Milwaukee ORP meters

Several Milwaukee models read ORP as well as pH. The pH58 MAX
is the pocket option and replaces the discontinued ORP57. The MW105 MAX and MW106 MAX portables need the MA921B/2 ORP probe, sold separately, because the supplied probe reads pH only. The MW150, MW151, MW160 and MW180 MAX bench meters all read ORP in mV. Check readings with MA9020 ORP test solution.

pH and ORP monitors and controllers

The MC110 and MC120 PRO monitors display pH continuously. The MC122 PRO and MC720 PRO also dose to hold a pH set point. The MC125 PRO controls pH and ORP together, and the MC510 PRO controls ORP only. See all pH & ORP
monitors and controllers.

Probes, buffers and care

Every pH electrode wears out with use. Keep a spare Milwaukee probe or electrode and fresh pH buffer solutions, and store the electrode in storage solution between readings.

Comparing Milwaukee with other brands?

Milwaukee Meters is part of Pacific Sensor Technologies. To compare Milwaukee with Hanna and GOnDO pH testers, see the pH meter and pH tester range at Pacific Sensor Tech, or read the guide to how to select a pH meter. For ORP meters from Hanna, GOnDO and Milwaukee side by side, see Pacific Sensor Tech’s ORP meter range.

Frequently Asked Questions

How do I calibrate a Milwaukee pH meter?

Rinse the electrode in distilled water, then calibrate in pH 7.01 buffer first. For a two-point calibration, follow with pH 4.01 for acidic samples or pH 10.01 for alkaline samples, rinsing between buffers. The pH600AQ, pH51, pH54 and MW100 are calibrated manually. The pH55, pH56 and MAX bench meters recognise the buffer automatically. Use fresh buffer each time and follow your model's manual for the exact key steps.

Which Milwaukee meters measure ORP?

The pH58 MAX pocket tester, the MW105 MAX and MW106 MAX portable meters, and the MW150, MW151, MW160 and MW180 MAX bench meters all read ORP in mV. The MW105 and MW106 need the MA921B/2 ORP probe, sold separately. For continuous control, the MC125 PRO handles pH and ORP and the MC510 PRO handles ORP.

Which Milwaukee pH meters have automatic temperature compensation?

The pH55 PRO, pH56 PRO, MW102 PRO and MW803 MAX compensate for temperature automatically, and the MW105 and MW106 MAX offer automatic or manual compensation. The MW100 and MW101 PRO use manual temperature compensation, so you set the sample temperature yourself. Choose automatic compensation if
your samples are not at room temperature.

Is Milwaukee Instruments the same company as Milwaukee Tool?

No. Milwaukee Instruments makes pH, ORP, conductivity, TDS and other water-analysis meters. Milwaukee Tool makes power tools. The two companies are not related.

Can I replace the electrode on a Milwaukee pH tester?

Yes. The pH51, pH54, pH55, pH56 and pH58 MAX pocket testers and the MW803 and MW804 MAX testers all take a replaceable electrode, so you replace the sensor rather than the whole tester. Portable meters use a separate probe on a cable, such as the SE220 supplied with the MW100.

How should I store a pH electrode?

Keep the glass bulb wet in electrode storage solution, with the cap on. Do not store it in distilled or reverse-osmosis water, because that shortens its life. Clean it with electrode cleaning solution when readings become slow, then recalibrate.