pH & EC Control

GHE pH Test Kit 60ml is a liquid pH tester, ideal both for easy testing and for backup or supplementary measurement after using a digital pH meter.

• Quick, reliable, accurate pH testing without batteries
• testing range: from 4.0 to 8.5
• capacity for up to 1000 tests

How to use:

1. simply fill the supplied test tube halfway with the prepared nutrient solution
2. add two drops of the liquid pH tester
3. shake and compare the resulting colour with the chart to read the pH level.

Milwaukee pH 7.01 20ml buffer solution / calibration liquid for pH measuring instruments.

• Accuracy: ±0.01 pH
• value: 7.01 pH at 25°C
• volume: 20 ml
• single-use

Milwaukee pH 4.01 20ml buffered solution / calibration liquid for pH meters.

• Accuracy: ±0.01 pH
• value: 4.01 pH at 25°C
• volume: 20 ml
• single-use

Milwaukee 1413 µS/cm Conductivity Calibration Solution 20ml is a buffered solution/calibration liquid for instruments measuring electrical conductivity (EC).

• accuracy: ±0.01 EC
• value: 1413 µS/cm at 25°C\n
• volume: 20 ml
• single-use

liquid pH test - accuracy 0,2

Easy-to-use, affordable and economical test for the acidity of the working solution.

Pour the solution to be measured into the supplied test tube. Add a few drops of the indicator solution and shake. Read the pH according to the colour on the scale.


contains 30ml, sufficient for 150 measurements
pH range 5.6-7.4, reading accuracy 0,2

Extend the life of your pH meter, sensor, probe or ORP electrode with Milwaukee MA9015 Storage Solution for pH / ORP Electrodes 230ml!

To obtain fast and accurate measurements of the pH and redox potential of your solutions, you must not let your sensor dry out! Proper storage of your pH sensor in solution keeps the glass membrane well hydrated, which supports correct operation and ensures accurate readings.

• storage solution
• volume: 230ml

PH600 is a digital pen for measuring the pH of liquids from Milwaukee's economy range of measuring instruments. It is ideally suited to enthusiasts of hydroponics and aquariums.

• Fast and accurate results with a digital LCD display.
• Easy measurement - simply place the probe in the water, stir gently and wait for the reading to stabilise.
• Easy one-point calibration with an easy-to-use trimmer located on the back of the pH tester for protection from accidental splashes.
• Cap for protecting the pH sensor, keeping it wet when stored upright.
• Low power consumption for extended battery life (batteries included).

Instructions for use here*. Calibration instruction video here*.

The set includes:

• 1x Milwaukee PH600 Digital pH Pen - digital pH measurement pen
• 1x calibration screwdriver

Technical specifications:

• measurement range: 0.0 - 14.00 pH
• resolution: 0.1 pH
• measurement accuracy: 0.1 pH
• calibration: manual, single-point
• operating environment: temp. 0 - 50°C, humidity up to 95%
• batteries: 3x LR44 1.5V (included)
• battery life: up to 700 h of operation
• dimensions: 32 x 180 x 65 mm
• weight: 60 g
• device warranty: 1 year
• sensor warranty: 6 months

Proper maintenance of your pH meter will give you fast and accurate results for longer. Here are our four best tips:

1. Always store it with the cap filled with buffer or MA9015 storage solution, and not water.
2. Clean the pH sensor regularly by soaking it in MA9016 cleaning solution.
3. Calibrate after cleaning and/or storage before testing to correct changes in the pH sensor.
4. Stir the sample gently with the pen for a faster result.

Milwaukee Electrode Rinse Solution 20ml is ideal for rinsing your electrode between immersion in different calibration fluids, thereby preventing them from mixing. This rinse solution is also ideal for removing accumulated deposits on the probe or cap caused by evaporation of the storage solution. Although the buildup of these deposits is normal, they must always be removed before measurement or calibration!

• Does not replace cleaning or storage solutions!
• Extends the life of your electrode!
• single-use

Milwaukee pH 10.01 20ml buffered solution / calibration liquid for pH meters.

• Accuracy: ±0.01 pH
• Value: 10.01 pH at 25°C
• volume: 20 ml
• single-use

Milwaukee 12880 µS/cm Conductivity Calibration Solution 20ml is a buffered solution / calibration liquid for instruments measuring electrical conductivity (EC).

• accuracy: ±0.01 EC
• value: 12880 µS/cm at 25°C
• volume: 20 ml
• single-use

Milwaukee MA9016 Cleaning Solution for pH / ORP Electrodes 230ml is specially designed to improve and extend the life of the pH sensors and ORP electrodes in your instruments! The accuracy and speed of measurements depend on whether the tip of the pH sensor or the ORP electrode is clean!

• electrode cleaning solution
• volume: 230 ml

Directions for use:

1. Open the bottle and fill a cup or container so that the level covers the sensor and electrode.
2. Soak for 15 to 20 minutes!
3. Soak in MA9015 storage solution for at least 2 hours!

CD611 is a digital pen for measuring electrical conductivity (EC) of liquids from Milwaukee's economical range of measuring instruments. Suitable for hobby gardeners who want to ensure their plants receive the right amount of nutrients.

• Measures conductivity and temperature with automatic temperature compensation
• Ideal range for hydroponics (0 to 20 000 µS/cm)
• The measurement units in µS/cm can easily be converted to ppm
• Factory calibrated with the option to recalibrate when needed

Instructions for use here*. Calibration instruction video here*.

The set includes:

• 1x Milwaukee CD611 Digital Conductivity Pen (EC) - digital pen for measuring electrical conductivity (EC)
• 1x calibration screwdriver

Features:

• measurement range: 0 to 20 000 µS/cm
• resolution: 100 µS/cm
• measurement accuracy: ±2% full scale
• temperature compensation: automatic, from 5 to 50°C, with ß=2%/°C
• calibration: manual, single-point
• operating environment: temperature 0 to 50°C, humidity 95%
• batteries: 4x LR44 1.5V alkaline (included)
• battery life: up to 350 h of operation
• dimensions: 32 x 180 x 65 mm
• weight: 60 g

Maintenance: EC electrodes can develop nutrient build-up over time. To minimise build-up, always rinse the probe in fresh tap water after each use!.

EC to TDS conversion: Milwaukee EC Pen, like all conductivity meters, measures electrically charged ions in a solution and provides an absolute measure of conductivity. EC is often converted to TDS in parts per million (ppm). Different scales include the 500 scale, 650 scale and 700 scale. However, true PPM can only be determined through chemical analysis. Your mS/cm reading can be approximately converted to TDS (ppm), as shown in the examples below.

1. 2.00 mS/cm = 2000 µS/cm = 1000 ppm on the .50 factor scale
2. 2.00 mS/cm = 2000 µS/cm = 1400 ppm on the 442 scale or .70 factor scale

Milwaukee pH51 is one of the most accurate, robust and reliable budget pH testers on the market. The easily replaceable probe provides years of worry-free use. Ideal for use in hydroponics, aquariums, gardening, pools and many other applications.

• fast and easy-to-read results with a large digital LCD display
• measurement accuracy: ±0.1 pH
• measurement range: 0.0 - 14.0 pH
• easy calibration: 1-point or 2-point
• completely waterproof (IP65)
• built-in probe: MA73600 (replaceable)

Instructions for use here*. Calibration instruction video here*.

The set includes:

• 1x calibration solution pH 7.01 - 20ml
• 1x calibration solution pH 4.01 - 20ml
• 1x calibration screwdriver

Key features:

• measurement range: 0.0 - 14.0 pH
• resolution: 0.1 pH
• measurement accuracy: ± 0.1 pH
• easy manual 1-point or 2-point calibration.
• built-in probe: MA73600 (replaceable)
• operating conditions: 0 - 50°C; max. RH (relative humidity) 100%
• batteries: 3x 1.5V, IEC LR44, A76 (included)
• battery life: over 1500 h of continuous use
• batteries: included in the package
• dimensions: 16.5 cm , ⌀ 3 cm
• weight: 99 g
• instrument warranty: 1 year
• probe warranty: 6 months

Calibration:

1. Unscrew the battery-compartment cap at the top of the meter and follow this two-point calibration procedure:
2. Immerse the electrode in pH 7.01 calibration buffer solution.
3. Allow the reading to stabilise, then use a small screwdriver to turn the “7” calibration trimmer in the battery compartment until the display shows “7.0”.
4. Rinse the electrode with tap water and immerse it in pH 4.01 calibration buffer solution.
5. Allow the reading to stabilise, then use a small screwdriver to turn the “4” calibration trimmer until the display shows “4.0”.

Proper probe maintenance will give you fast, accurate results for longer. Here are our top four tips.

1. Always store it with the cap filled with buffer or MA9015 storage solution, and not water.
2. Clean your probe regularly by soaking it in MA9016 cleaning solution.
3. Calibrate after cleaning and/or storage before testing to correct changes in the pH and EC sensor.
4. Gently stir the probe in the sample for a faster result.

Milwaukee Waterproof pH55 PRO pH/Temp is one of the best-selling pH testers on the market. Accurate measurements, affordability, robustness and reliability make it one of the preferred instruments among hobbyists and professional growers alike. With a large digital LCD display, an easily replaceable probe and an extended pH measuring range, ph55 PRO meets almost every application. Ideal for use in aquariums, hydroponics, gardening, swimming pools, beer brewing and many other applications.

• accuracy to ±0.1 pH and extended measuring range from -2.0 to 16.0 pH
• lightweight and portable
• easy to use
• automatic temperature compensation (ATC)
• easy automatic calibration at one or two points
• includes 2x solutions for calibration (M10007 and M10004)
• completely waterproof (IP65)
• built-in probe: Mi56P (replaceable)

The reusable Bluelab pH 7.0 Calibration Solution 250ml (pH) is a high-quality calibration liquid for single-use pH sensors/probes. Bluelab calibration solutions are essential when using all Bluelab measuring instruments. They are produced specifically for Bluelab products and meet high laboratory standards, helping ensure that your Bluelab products remain accurate and last longer.

• Accuracy: ±0.01 pH
• Value: 4.0 pH at 25°C
• Volume: 250 ml
• for repeated calibration

The Bluelab pH 7.0 Calibration Solution 18ml calibration solution (pH) is a high-quality, single-use calibration liquid for pH sensors/probes. Bluelab calibration liquids are essential when working with all Bluelab measuring instruments. Bluelab calibration liquids are made specifically for Bluelab products and meet high laboratory standards to ensure that your Bluelab products last longer and remain accurate.

• Accuracy: ±0.01 pH
• value: 7.0 pH at 25°C
• volume: 18 ml
• single-use

The Bluelab pH 4.0 Calibration Solution 250ml reusable pH calibration solution is a high-quality calibration liquid for single-use pH sensors/probes. Bluelab calibration solutions are essential when using all Bluelab measuring instruments. Bluelab calibration solutions are manufactured specifically for Bluelab products and meet high laboratory standards to ensure that your Bluelab products last longer and remain accurate.

• Accuracy: ±0.01 pH
• value: 4.0 pH at 25°C
• volume: 250 ml
• for repeated calibration

Milwaukee EC meter EC60

Professional EC meter

Professional waterproof EC meter with temperature display, automatic temperature compensation and automatic calibration.

Displays EC or PPM, plus solution temperature.

"HOLD" function for storing the measured value.

Replaceable sensor.

Milwaukee EC meter EC60

• Range: 0-20 mS/cm; 0-10 ppt; 0.0 - 60.0°C
• Resolution: 0.01 mS/cm; 0.01 ppt; 0.1°C
• Accuracy: ±2%; ±0.5°C
• Calibration: automatic, one point
• Automatic temperature compensation with β=0.0 to 2.4%/°C
• Operating conditions: temp. 0-50°C, humidity up to 100%
• Batteries: 4 pcs. LR44 1,5V / 100 hours of operation
• Automatic shut-off: after 8 min.
• Dimensions: 200 x 38 mm / 100 g
• Manufacturer's warranty - 2 years for the device, 6 months for the sensor. Does not apply to mechanical damage and improper use!

Take quick pH and temperature measurements of your solution with the Bluelab pH pen!

• completely waterproof
• simple two-point calibration
• 1-year warranty
• automatic shut-off function to extend battery life
• 1 x AAA alkaline battery (included)
• pH measurement range: 0.0 - 14.0 
• accuracy: ± 0.1 at 25°C 

Full technical product specifications here!

The best, most convenient solution for measuring the pH and temperature of your nutrient solution! Plants obtain their nutrients from minerals, but they can receive all the minerals they need only when certain conditions are right. Think of nutrients as a lock. pH is the key. A key factor affecting nutrient uptake is whether your solution is acidic or alkaline. We measure this through pH. The Bluelab pH pen also measures the temperature of the solution, as root health is vital to a successful harvest. Temperature affects the growth rate and structure of the plant, so a solution temperature of 18-22°C is recommended. The Bluelab pH pen offers a compact, quick and convenient way to manage your crop's success and ensure maximum nutrient uptake. Together with the Bluelab Conductivity Pen, you have a convenient, accurate system for ensuring optimal plant growth and health.

• completely waterproof
• simple two-point calibration
• 1-year warranty
• automatic shut-off function to extend battery life
• 1 x AAA alkaline battery (included)
• pH measurement range: 0.0 - 14.0 
• temperature: 0 - 50°C
• accuracy: pH: ± 0.1 at 25°C
• selectable temperature units (C°/F°)
• Backlit LCD display
• built-in pH probe (non-replaceable)
• tick indicating successful calibration
• hold function for recorded measurements
• low battery indicator
• automatic shut-off function

Bluelab 2.77 EC Conductivity Standard Solution 250ml is a high-quality solution for calibrating EC meters (electrical conductivity meters). Bluelab calibration fluids are essential when working with all Bluelab measuring instruments. Bluelab calibration fluids are specially manufactured for Bluelab products and meet high laboratory standards to ensure that your Bluelab products last longer and remain accurate.

• accuracy: ±0.01 EC
• value: 2.77 µS/cm at 25°C
• volume: 250 ml
• for repeated calibration

Essentials CF Standard 2.8ms 30ml is a buffered solution / calibration fluid for instruments that measure electrical conductivity (EC).

• accuracy: ±0.01 EC
• value: 2.8 µS/cm at 25°C
• volume: 30 ml
• single-use

Bluelab pH 4.0 Calibration Solution 18ml is a high-quality single-use calibration liquid for pH sensors / probes. Bluelab calibration solutions are essential when working with all Bluelab measuring instruments. Bluelab calibration solutions are manufactured specifically for Bluelab products and meet high laboratory standards to ensure that your Bluelab products last longer and remain accurate.

• Accuracy: ±0.01 pH
• value: 4.0 pH at 25°C
• volume: 18 ml
• single-use

Milwaukee C66 is one of the most reliable budget testers for measuring conductivity (EC) and solution temperature on the market. Designed for growers who want to ensure their plants receive the right amount of nutrients. By maintaining EC levels within the target range, you will achieve better results.

• measures conductivity (EC) and temperature with automatic temperature compensation (ATC)
• measurement range: 0.0 - 10.00 mS/cm
• measurement accuracy: ±2%
• measurement units mS/cm, which can easily be converted to ppm (parts per million)
• factory calibrated with the option to recalibrate (if necessary)
• completely waterproof (IP65)
• built-in electrode: MA73076 (replaceable)

Instructions for use here*. Calibration instruction video here*.

The set includes:

• 1x 1413 µS/cm calibration solution - 20 ml
• 1x calibration screwdriver

Technical specifications:

• measurement range: 0.00 - 10.00 mS/cm
• resolution: 0.01 mS/cm
• measurement accuracy: ±2%
• calibration: manual, 1-point
• operating environment: 0 - 50°C; max. RH (relative humidity) 100%
• batteries: 3x 1.5V, IEC LR44, A76 (included)
• battery life: over 250 hours
• batteries: included in the set
• dimensions: 16.5 cm , ⌀ 3 cm
• weight: 99 g
• instrument warranty: 1 year
• electrode warranty: 6 months

Calibration:

1. Immerse the measuring instrument in 1413 µS/cm calibration solution.
2. Unscrew the battery-compartment cap on the top of the measuring instrument.
3. Allow the reading to stabilise, then use a small screwdriver to turn the calibration trimmer inside the battery compartment until the display shows “1.41”.
4. Fit the battery-compartment cap.
5. Calibration is complete.

Maintenance: EC electrodes can develop nutrient buildup over time. To minimise buildup, always rinse the probe in fresh tap water after each use!.

EC to TDS conversion: Milwaukee EC Pen, like all conductivity meters, measures electrically charged ions in a solution and provides an absolute measure of conductivity. EC is often converted to TDS in parts per million (ppm). Different scales include the 500 scale, 650 scale and 700 scale. However, true PPM can only be determined through chemical analysis. Your mS/cm reading can be approximately converted to TDS (ppm), as shown in the examples below.

1. 2.00 mS/cm = 2000 µS/cm = 1000 ppm on the .50 factor scale
2. 2.00 mS/cm = 2000 µS/cm = 1400 ppm on the 442 scale or .70 factor scale

Bluelab KCl is a specialised storage liquid for pH probes and electrodes that prevents the sensitive tip from drying out. It ensures proper probe hydration and maintains measurement accuracy. Compatible with: B

• pH pen
• Bluelab Soil pH p
en
• Bluelab pH
• Meter Bluelab

pH Probe Product type: storage solution for pH probes and electrodes. Com

 potassium chloride (KCl) — the same type of solution as the internal electrolyte in pH probes, preventing damage and dry

out V

 100 ml Function: keeps the pH probe hydrated, extending its life and ensuring a rapid response

during measurement Compatibility: suitable for all Bluelab pH meters, probes and pens, as well as other

compatible

• devices. Advantages: prevents
• the electrode from drying ou
t
• extends the life of the pH probe

maintains accurate and

stable measurements Recommendations for use: Probe storage: add a few drops to the pH probe cap and close it to

keep the tip constantly moist. Recovery: if the probe has dried out, immerse it in KCl solution

for 24 hours before reusing it Maintenance: use monthly to maintain measurement accuracy

and speed. Product storage: store in a cool, dry place away from direct light.

Take quick measurements directly in your plants' soil quickly and easily with the Bluelab Soil pH pen!

Bluelab Soil pH pen is a meter for measuring pH and soil temperature in soil and other growing media. With this smart pen, you can be sure that your plants receive the right nutrients. It can also measure liquids... Convenient, isn't it?

• completely waterproof
• effective in most growing media and in water / solution
• 1-year warranty
• simple two-point calibration
• automatic shut-off function to extend battery life
• 1 x AAA alkaline battery (included)
• pH measurement range: 0.0 - 14.0
• accuracy: ± 0.1 at 25°C 

Measuring soil pH and temperature—the essentials of growing.

• All plants need a balanced diet of nutrients (food) to grow. However, plants can access nutrients only if the pH (potential hydrogen) of your growing medium falls within the correct range.
• Contrary to common belief, all growers should measure pH, whether growing in soil or solution. This is because pH plays an important role in making nutrients soluble so they can be absorbed by plants. If your medium is too alkaline or too acidic, your plants will not be able to obtain all the nutrients they need. Temperature is also important, as it can affect the structure and growth rate of your plants.
• Together with the Bluelab Conductivity Pen, you have a convenient, accurate system for ensuring optimal plant growth and health.

Product information: here*

Instructions for use: here*

With the Milwaukee Pocket Mi6000 set, you can monitor the temperature, pH and electrical conductivity (EC) levels of your plants' nutrient solution. The set includes:

• 1x digital pH tester pen Milwaukee pH600
• 1x digital EC tester pen Milwaukee CD611
• 1x hard plastic storage case

Bluelab Probe Care Kit – pH & Conductivity is a kit containing everything needed to clean, hydrate and calibrate your pH meter probe, as well as clean and test your EC meter probe (electrical conductivity meter):

• Instructions on how to care for the probes of your meters
• 2 x Bluelab pH 7.0 Calibration Solution - Sachet 20ml
• 2 x Bluelab pH 4.0 Calibration Solution - Sachet 20ml
• 2 x Bluelab pH Probe KCl Storage Solution - Sachet 20ml for single use
• 2 x Bluelab 2.77 EC Conductivity Standard Solution Sachet 20 ml for single use
• pH probe cleaning solution
• EC probe cleaning solution
• pH probe cleaning tool
• EC probe cleaning tool

1. Your instruments' measurements are only as accurate as their probes are clean. Accurate measurements simplify crop growing and ensure improved growth.
2. Proper maintenance and storage of your probes ensure the most accurate measurements possible and maximise their lifespan. The probe surface is where the instrument measures the solution. If the probe is uncleaned and contaminated, measurements may be inaccurate. Like a car windscreen: if it is dirty, you will not be able to see the road! If the probe is contaminated, it cannot take accurate measurements.
3. Tip ... if the measured conductivity levels are too low, the probe needs cleaning.
4. The pH probe must be kept wet at all times for optimum performance and a long life!

? pH 7.01 calibration solution – 300 ml is specially formulated for calibrating pH meters, ensuring accurate and precise measurements. With its stable pH level of 4.01 at 25°C, it is ideal for checking and adjusting measuring instruments used in hydroponics, aquariums, laboratories and other applications.

? Detailed specifications:

• Volume: 300 ml
• pH value: 7.01 at 25°C
• Application: Calibration of pH meters
• Composition: Complies with international standards for calibration solutions
• Manufacturer: Wather Masters

? Recommendations and directions for use:

1. Pour a small amount of the solution into a clean container.
2. Immerse the pH meter electrode in the solution.
3. Calibrate according to the instructions of your pH meter manufacturer.
4. After use, discard the used solution and do not return it to the original packaging to avoid contamination.

✅ Benefits of use:

• Accuracy: Provides precise pH value measurements.
• Easy to use: Convenient for use in both laboratory and field conditions.
• Compatibility: Suitable for most pH meters on the market.
• Long-lasting performance: Stable pH value, ensuring reliable calibration of your instruments.

Milwaukee pH 7.01 230 ml buffered solution / liquid for calibrating pH measuring instruments. Calibrating your pH meter is a simple procedure for optimum performance and should be carried out whenever your instrument's readings appear questionable. Calibration should be carried out at least once a month! 

• accuracy: ±0.01 pH
• value: 7.01 pH at 25°C
• volume: 230 ml

Milwaukee calibration liquids are designed to help you achieve reliable and repeatable pH measurements while extending the life of your instrument.