Aquaponics Measuring Devices
Milwaukee Instruments, Inc. is comprised of manufacturing, sales and distribution facilities throughout the world. Their precision, diagnostic equipment is used in laboratories, food and beverage operations, agriculture, industry and by hobbyists in a wide variety of applications.
They manufacture affordable, easy-to-use meters, testers, monitors and controllers for measuring pH, EC, TDS, ORP, LUX, DO and all types of photometers and mini-titrators. Milwaukee Instruments offers equipment built to the highest international standards; fast, knowledgeable customer service; and an excellent warranty program (at the bottom of this page) – all at competitive prices.
Introducing Milwaukee Instruments
Single Measurement – Portable Meters
MW 100 and MW 101 pH Meters
About pH: The pH value of a solution is a measure of its acidity or alkalinity. A basic, neutral solution measures 7 on the pH scale. As a solution gets more acidic, the pH value will decrease. As the solution becomes less acidic, or more alkaline, the value will increase. The pH scale ranges from 0 pH (very acid) to 14 pH (highly alkaline). Pure water has a pH of 7, indicating that it is neither acidic nor alkaline, but neutral. To learn more about pH requirements for aquaponics, click over to our Water Page.
The MW 100 pH Meter is a small portable pH Meter that features ingenious gel-filled, double-life junction electrodes which are removable and replaceable for easy storage and maintenance. The meter measures pH with a range of 0.0 to 14.0, resolution of 0.1 pH and an accuracy of ± 0.2 pH. Calibration is 2-point manual. The unit comes complete with a probe, nine-volt battery, and 20-ml sachet of calibration solution. The Smart Portable pH Meter is backed by a two-year warranty, and the probe carries a 1-year warranty.
The MW 101 pH Meter is a small portable pH Meter that features manual temperature calibration and an ingenious gel-filled, double-life junction electrodes which are removable and replaceable for easy storage and maintenance. The meter measures pH with a range of 0.0 to 14.0, resolution of 0.01 pH and an accuracy of ± 0.02 pH. Calibration is 2-point manual. The unit comes complete with a probe, nine-volt battery, and 20-ml pH 7.01 and 4.01 sachets of calibration solution. The Smart Portable pH Meter is backed by a two-year warranty, and the probe carries a 1-year warranty.
MW100 pH $82
The compact and portable Milwaukee Dissolved Oxygen Meter delivers fast and reliable readings of the amount of dissolved oxygen in your aquaponic, hydroponic system or other water environment. It calibrates easily without using calibration solution. It also has an automatic temperature compensation to guarantee the highest accuracy. Other features include its small, ergonomic design; large and easy-to-read LCD display; “low battery” warning; easy-to-replace screw-on cap membrane and long battery life. Included with the meter are the polarographic probe with a three meter cable, calibration screwdriver, two spare membranes, electrolyte solution, battery and instructions.
MW600 DOM $166
MW 600 Dissolved Oxygen Meter
MW 401 and MW 402 TDS Meters
MW101 pH $93
Range: 0 –1990 ppm – With Automatic Temperature Compensation (ATC) and 1 Point Manual Calibration, Supplied with MA811D/1 TDS Probe, a 9 Volt Battery, a 20 ml - 1382 ppm Sachet Calibration Solution and Screwdriver for Calibration.
Range: 0.0 – 10.0 g/l – With Automatic Temperature Compensation (ATC) and 1 Point Manual Calibration, Supplied with MA812D/1 TDS Probe, a 9 Volt Battery, a 20 ml - 6.44 ppt Sachet Calibration Solution and Screwdriver for Calibration.
MW401 TDS $82
MW402 TDS $82
MW 301 and MW 302 EC Meters
The MW301 has a range of 0 to 1990 µS/cm with a 10 µS/cm resolution. The meter is supplied complete with Conductivity probe with 1 meter cable and calibration solution.
The MW302 has a range of 0.0 to 10.0 mS/cm with a 0.1 mS/cm resolution. The meter is supplied complete with Conductivity probe with 1 meter cable and calibration solution.
MW301 and MW302 are portable Electrical Conductivity (EC) meters, with Automatic Temperature Compensation, and are ideal for the educational and agricultural markets. Soil conductivity is checked before fertilizer application to pinpoint field needs and after fertilization to establish its effectiveness. The EC testing provides all agricultural operation with a method to optimize chemical applications and minimize operational cost.
These instruments have been designed to meet the Grower's need for equipment suited to the aggressive environments found in aquaponics and hydroponics applications.
MW 500 performs ORP measurements with a range of ±1000 mV. The meter is supplied with ORP electrode and calibration solutions.
MW 500 Oxygen Reduction Potential Meter
MW500 ORP $102
MW 700 LUX Light Meter with Probe
The MW 700 LUX Light Meter has 3 selectable ranges: 0.00 to 1,999 Lux, 2,000 to 19,999 Lux or 20,000 to 50,000 Lux. Range settings are done through key buttons and the unit has resolutions of 1 Lux / 10 Lux / 100 Lux respectively. Accuracy is +/- 6%. It measures a peak wavelength at 560nm using a Silicon Photodiode Waterproof Sensor and comes with a 9 volt Battery.
Multiple Measurement – Portable Meters
MW 102 pH and Temperature Meter
MW301 EC $82
MW302 EC $82
MW 401 and MW402 are portable Total Dissolved Solids Meter (TDS), with Automatic Temperature Compensation, and are ideal for the educational and home markets.
These instrument have been designed to meet the Grower's needs for equipment suited to the environments found in aquaponics and hydroponics applications.
The MW 102 measures both pH and Temperature. It has a range of 0.00 to 14.00 pH and 0 to 70 C, ±0.01 with ATC & Automatic Calibration. It comes with a SE220 double junction pH Probe & MA830R Temperature Probe, 9 V Battery, 20 ml. pH 7.01 & 4.01 Sachet Calibration Solution. It has a resolution of 0.01 pH with an accuracy of 0.02 pH.
MW102 pH $114
MW 801 and MW 802 pH/EC/TDS Combo Meters
MW801 pH/EC/TDS $156
MW802 pH/EC/TDS $156
The MW801 with a Conductivity range that goes up to 1990 µS/cm and TDS range that goes up to 1990 ppm is an ideal tool for drinking water measurements.
pH/EC/TDS Combo Meter, Range: 0.0 – 14.0 pH, 0 – 1990 ppm, 0 – 1990µS/cm, Accuracy ±0.2 pH and ± 2% Full Scale for EC and TDS. Comes with SE600 Combo Probe, a 9V Battery, a 20ml Sachet of Calibration Solution of pH7.01, 1382 ppm & 1413 µS/cm.
The MW802, with a conductivity range that goes up to 6.00 mS/cm and the TDS up to 4000 ppm is ideal for testing in crop production. Soil and well water pH that is too acidic or alkaline can have an adverse effect on plant nutrient and water uptake and directly effect the efficiency of plant fertilization.
pH/EC/TDS Combo Meter, Range: 0.00 – 14.00 pH, 0 – 4000 ppm, 0.00 – 6.00mS/cm, Accuracy ±0.20 pH and ± 2% Full Scale for EC & TDS, Comes with SE600 Combo Probe, a 9 volt Battery, a 20ml Sachet of Calibration Solution of pH 7.01, 1500 ppm and 1413µS/cm
3 meters in 1! This meter allows you to measure pH, EC (conductivity) and TDS (total dissolved solids) with just one instrument and one single probe!
Supplied with the SE600 interchangeable probe to measure pH, Conductivity and TDS. The pH electrode utilizes a fiber junction to reduce contamination when measuring fertilizer solutions. Both meters calibrate manually in pH, Conductivity and TDS.
Waterproof Pocket Testers
with Replacable Electrodes
pH55 pH56 pH58
ph/Temperature pH/Temperature pH/ORP/Temperature
These testers have a stability indicator and hold function that freezes the display for easy and accurate recording. The large display also has graphic symbols to guide you through all operations. Complete with a temperature probe for faster and more precise temperature measurement it compensates automatically for temperature.
Calibration is made automatically in 1 or 2 points with memorized standard and NIST buffer sets. Auto power OFF saves battery power after non-use. The double-junction electrode can be replaced in a very fast and simple way! The modular design allows easy electrode and battery replacement.
The pH55 is a pH tester with Large dual-level LCD that displays pH and temperature (°C or °F). The large display shows readings in an extended range from -2.0 to 16.0 pH (with a 0.1 pH resolution) and simultaneously shows temperature from -5.0 to 105.0°C or 23.0 to 221.0°F.
The pH56 is a pH tester with Large dual-level LCD that displays pH and temperature (°C or °F). The large display shows readings in an extended range from -2.00 to 16.00 pH (with a 0.01 pH resolution) and simultaneously shows temperature from -5.0 to 105.0°C or 23.0 to 221.0°F.
The pH58 has advance functions for simultaneous pH and ORP measurements and temperature, which is continuously displayed on the dual level LCD.
It shows readings in an extended range from -2.00 to 16.00 pH or ±1000 mV and simultaneously shows temperature from -5.0 to 105.0°C or 23 to 221°F.
It has a stability indicator and hold feature that freezes the display for easy and accurate recording. The large display also has graphic symbols to guide you through all operations.
pH55 pH Meter
Milwaukee Warranty Policy
All our instruments are warranted for 2 years. Each meter has a serial number and is supplied with a warranty certificate. To validate the warranty, the warranty card must be filled out and returned to Milwaukee within 14 days. Warranty is valid only when the product is used under normal conditions and in accordance with the instruction manual. Our MA957 Regulator and all electrodes/probes, are warranted for 6 months. Our Economical Testers (pH600-AQ and pH600-BOX) carry a 30 day warranty.
Milwaukee warrants all products to be free of defects in material and workmanship as stated in the operating manual. If repair or adjustment is necessary and has not been the result of abuse, misuse or improper handling within the warranty period, please contact your dealer or the Technical Service Department at Milwaukee for an RGA (Returned Goods Authorization) number to put on the outside of your freight prepaid package. Warranted service will be made without charge.
The warranty is void if the instrument is repaired or serviced by unauthorized personnel, not used in accordance to the instructions, or if non-Milwaukee accessories such as buffer solutions, electrodes, probes etc. are used in conjunction with the meter. Milwaukee will not be held responsible for any accident whether directly or indirectly, caused by the use of this instrument.
The warranty period commences from the original date of sale and is valid on the date Milwaukee receives the warranty registration form.
Note: All prices below are pre-pay.
For Purchase Orders, divide pre-pay prices by 0.9