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Milwaukee Instruments Monitors, Photometers, Controllers & Testers
Milwaukee Testers are micro-processor based pen style testers with a clog resistant electrode
  • Specifically designed for the aquarium market
  • Auto shut off after 10 minutes saves battery life and extends tester life
  • Complete with battery and calibration solution
Milwaukee Meters, such as the Milwaukee pH Meter, are low cost and simple to use portable meters
  • Powered by a 9v battery (supplied) these meters
  • Include electrode and calibration solution
Milwaukee Controllers monitor values in your aquarium allowing you to control other equipment when a user selectable set point is reached
  • Include electrodes and controlled outlets
Milwaukee Photometers use an LED to analyze the tint of a water sample (when mixed with the reagent) to determine levels.
  • Complete with battery and reagent

We also carry Milwaukee Replacement Electrodes and Milwaukee Replacement Solutions

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Milwaukee instruments milwaukee ph pen milwaukee ph 600 milwaukee ph600 ph 600 milwaukee ph 600. Milwaukee Instruments pH Pen, PH600

The Milwaukee pH Pen, PH600 is an easy to use pH meter. It features +- 0.2 Accuracy, one-point calibration and a long battery life (approx.700 hours of continuous use).

Calibration solution not included.

List Price: $30.45
Our Price: $20.79
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Milwaukee Instruments pH Tester pH55 Milwaukee Instruments pH Tester, pH55

The Milwaukee pH Tester, pH55 is a waterproof micro-processor based pen style meter with a replaceable clog resistant electrode specifically designed for the aquarium market. The Milwaukee pH Tester comes complete with a battery and one each of the 20 ml pH 7.01 & 20 ml pH 4.01calibration solution. You may wish to purchase extra calibration solution.

Product Manual (pdf format in new window)

List Price: $87.94
Our Price: $51.99
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Milwaukee Instruments MW101 pH Meter Milwaukee Instruments pH Meter, MW101

The Milwaukee Instruments pH Meter, MW101 has manual 2 point calibration and manual temperature compensation. Powered by a 9 volt battery (supplied), these meters come complete with electrode and 20 mL 4.01 & 7.01 calibration solutions. You may wish to purchase extra pH calibration solution.

Product Manual (pdf format in new window)

List Price: $123.90
Our Price: $81.09
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Milwaukee Instruments MW102 pH Meter milwaukee ph meter milwaukee ph meters Milwaukee Instruments pH Meter, MW102

The Milwaukee pH Meter, SM102, has 2 point automatic calibration and automatic temperature compensation. It comes with an electrode, temperature probe and 20 mL 7.01 calibration solution. You may wish to purchase extra pH calibration solution.

Product Manual (pdf file in new window)

List Price: $179.55
Our Price (price includes free shipping!) $116.09
You save $63.46!
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Milwaukee Instruments pH Monitor MC120 Milwaukee Instruments pH Monitor, MC120

The Milwaukee Instruments pH Monitor, MC120, is a professional pH monitor especially designed for use with aquariums.

  • User selectable hi/low set point
  • Manual 2 points calibration
  • Range: 0.0 to 14.0 pH
  • Resolution: .1 pH
  • Accuracy: +/- .2 pH
  • Visual LED alarm. Set point range for alarm: 5.5 - 9.5 pH
  • Includes 12 VDC adapter &mounting kit
  • Includes 20ml pH 7.01 calibration solution You may wish to purchase extra pH calibration solution.
  • Includes Double junction pH electrode (MA911B/2) with 2m cable (BNC connector)
  • This is the upgraded version of the SMS120

List Price: $121.00
Our Price: $93.99
You save $27.01!
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Milwaukee Instruments pH Controller, MC122 Milwaukee Instruments pH Controller, MC122

The Milwaukee Instruments pH Controller, MC122, is especially designed for use with aquariums.


  • User selectable Hi/Low Set Point
  • Range: 0.0 - 14.0 pH
  • Resolution: 0.1 pH
  • Accuracy: +/- 0.2 pH
  • Manual 2 points calibration
  • Visual LED alarm
  • Supplied with 12 VDC adapter and mounting kit
  • Includes 20ml pH 7.01 & 20ml 4.01 calibration solution You may wish to purchase extra pH calibration solution.
  • Power plug for CO2 dosing
  • Double junction pH electrode with 2m cable (BNC connector)
  • This is the upgraded version of the SMS122

List Price: $163.00
Our Price (price includes free shipping!) $126.49
You save $36.51!
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Milwaukee Instruments pH & ORP Controller MC125 Milwaukee Instruments pH & ORP Controller, MC125

Milwaukee Instruments pH & ORP Controller, MC125, professional pH/ORP controller.

  • User selectable hi/low set point
  • Manual 2 points calibration
  • pH Range: 0.0 to 14.0
  • pH Resolution: .1 pH
  • pH Accuracy: +/- .2 pH
  • ORP Range: +/- 100 mV
  • ORP Resolution: +/- 1 mV
  • ORP Accuracy: +/- 5 mV
  • Visual LED Alarm: Active when reading is higher or lower than set point
  • Includes 12 VDC adapter &mounting kit
  • Includes 20ml pH 7.01 calibration solution You may wish to purchase extra pH calibration solution.
  • Includes 1 power plug for CO2 dosing & one power plug for O3 dosing
  • Includes Double junction pH electrode (MA911B/2) & platinum ORP electrode (MA921B/2)
  • This is the upgraded version of the SMS125

List Price: $318.00
Our Price (price includes free shipping!) $214.99
You save $103.01!
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Milwaukee Instruments MW500 ORP Meter Milwaukee Instruments ORP Meter, MW500

The Milwaukee ORP Meter, MW500, is a simple to use and low cost orp meter that comes complete with an electrode and 9 volt battery. It does not come with ORP Calibration Solution.

The Milwaukee Instruments ORP Meter, MW500, is the new and improved version of the SM500 ORP Meter featuring a faster processor, larger & easier to read LED display and easier calibration.

Product Manual (pdf file in new window)

List Price: $157.50
Our Price: $105.69
You save $51.81!
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Milwaukee Instruments Orp Controller MC510 Milwaukee Instruments Orp Controller, MC510

Milwaukee Instruments Orp Controller, MC510, is a professional ORP controller.

  • User selectable hi/low set point
  • Range: +/- 1000 mV
  • Resolution: +/- 1 mV
  • Accuracy: +/- 5 mV
  • Visual LED alarm
  • Factory calibrated
  • Includes 12 VDC adapter
  • Includes1 power plug for O3 dosing
  • Includes MA921B/2 Platinum ORP electrode (BNC connector)
  • You may also wish to purchase Storage Solution for pH/ORP Electrodes and the ORP Probe Conditioning Kit

List Price: $181.00
Our Price (price includes free shipping!) $133.99
You save $47.01!
(Out of Stock)
Milwaukee Instruments T75 TDS Tester Milwaukee Instruments TDS Tester, T75

The Milwaukee Instruments TDS (Total Dissolved Solids) Tester, T75 has a range 0 to 1999 ppm.

Features:

  • One 20 mL pack of calibration solution include. You may wish to purchase extra TDS Tester (meter) calibration solution.
  • Resolution: 1 ppm
  • Accuracy: 2%
  • Replaceable probe
  • Battery type: 3 x 1.5V, alkaline (battery not included)
  • Dimensions: 165 mm X 30 mm X 30 mm
  • Weight: 80 grams
  • Product Manual (pdf format in new window)

List Price: $84.00
Our Price: $55.79
You save $28.21!
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Milwaukee Instruments MW700 Lux Light Meter Milwaukee Instruments Lux Light Meter, MW700

The Milwaukee Instruments Lux Light Meter MW700 measures aquarium lighting intensity. It's a great tool for testing the intensity of your lighting system and determining when the bulbs need changing. The light sensor is waterproof and can be used to verify light intensity anywhere in a filled aquarium.

The MW700 replaces the SM700. The MW700 features a faster micro processor and has a smaller, ergonomic and lighter case design. Other features include 100% larger and easier to read LED display and longer battery life.

List Price: $117.60
Our Price: $75.89
You save $41.71!
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Milwaukee Instruments SMS310 EC (Conductivity) Monitor w/ Cal-Test Milwaukee Instruments SMS310 EC (Conductivity) Monitor w/ Cal-Test

Milwaukee's SMS310 is a reliable conductivity and TDS monitor with automatic temperature compensation and 2 point manual calibration powered by a 12 VDC adapter.


  • Manual 1 point calibration
  • Visual LED alarm
  • Includes 12 VDC adapter
  • Includes Probe with 2m cable (BNC connector)
  • Includes 20mL calibration solution
  • Complete product specs (pdf file in new window)

List Price: $110.00
Our Price: $56.00
You save $54.00!
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