Aqua Master Tools · Measurement & dosing

AquaMasterTools

Understand your water. Fine-tune your grow.

From a quick check before watering to monitoring your reservoir, choose the AquaMaster instrument that suits the way you grow: a handheld meter, substrate probe, monitor or dosing controller.

  • 48products to explore
  • pHSolution acidity
  • ECElectrical conductivity
  • °CWater or substrate temperature
Find my instrument Explore the range
Aqua Master Tools P700 Pro 2
DiscoverP700 Pro 2259,00 €View product →
Aqua Master Tools

Explore the range

View the full range →
Your needs, your meter

What would you like to measure or automate?

Start with the medium you want to check, then choose the parameters and display method you need. These pointers suggest a model for each task.

  1. Check pH before wateringpH and temperature in a pen-style meter for nutrient solutions.P50 Pro275,99 €View product →
  2. Track solution ECConductivity and temperature to compare your mixes before watering.E50 Pro271,99 €View product →
  3. Combine measurements in one meterpH, EC, TDS, PPM and temperature in a handheld instrument.Combo Pen P160 Pro2123,90 €View product →
  4. Measure directly in the substratepH and temperature with a separate cabled probe for soft, moist growing media.S300 Pro3138,49 €View product →
  5. Read values beside the reservoirContinuous pH, EC and temperature monitoring on a large LED display.P700 Pro 2259,00 €View product →
  6. View readings on your smartphoneConnected monitor with an app and alerts. No built-in display; smartphone not included.W650 Pro319,00 €View product →
  7. Build a dosing systemTouchscreen controller for pH and nutrient dosing. Compatible pumps sold separately.C800 Pro739,00 €View product →

pH, EC and temperature: complementary measurements

pH indicates how acidic or alkaline a solution is. EC measures its electrical conductivity and helps track its overall dissolved salt content; it does not identify individual nutrients. Temperature adds context to your checks and affects how readings are interpreted. Compare measurements under consistent conditions and follow the recommendations for your crop.

Choose well. Measure well.

  • 01

    An instrument for your task

    Start with what you need: spot checks, substrate measurements or continuous monitoring.

  • 02

    Replaceable probes

    On supported models, replace the probe after checking its part number and generation.

  • 03

    Care is part of measuring

    Calibration, cleaning and storage solutions each serve a specific purpose.

  • 04

    From monitoring to dosing

    Monitors track readings; C800 controllers operate compatible dosing pumps.

48 products

The complete AquaMaster range

Find meters, solutions and replacement parts, organised by use.

Choose pack sizes and variants on each product page. For a probe, check the exact model and generation of your meter.

Handheld meters

8 products

Check water and nutrient solutions as part of your watering routine.

Substrate measurement

5 products

Choose a probe designed for soft, moist growing media.

Continuous monitors

3 products

Read parameters at the reservoir or in an app, depending on the model.

Control and dosing

17 products

Build a setup with a controller, pumps and compatible accessories.

Calibration solutions

5 products

Use the reference values specified in your instrument’s manual.

Probe care

2 products

Distinguish cleaning from storage and follow the instructions for your electrode type.

Probes and accessories

8 products

Find the part that matches the model, generation and connector.

Questions and practical answers

Does a pH meter also measure EC?

It depends on the model. The P50 Pro2 measures pH and temperature; the E50 Pro2 measures EC and temperature. The P160 Pro2 combines pH and EC among its measurements. Check the parameters listed on each instrument’s product page.

Which instrument should I choose for soil or coco?

For direct measurement, choose a probe designed for growing media and follow the manufacturer’s procedure. The S300 Pro3 measures pH and temperature in soft, moist substrates. A pen designed for water is not automatically a substitute for a substrate probe.

Which solutions should I use for calibration?

Use the pH or EC reference values specified in your model’s manual. Calibration solution, cleaner and KCl storage solution have different purposes. Check the units too: 1,413 µS/cm equals 1.413 mS/cm.

Should every probe be stored in KCl?

No. The storage method depends on the electrode and its generation. Some models need suitable wet storage; others require dry storage. Follow the exact manual for your instrument rather than applying one method to the entire range.

Can a monitor automatically adjust pH or EC?

The P700 Pro 2 and W650 Pro monitor measurements. Automatic dosing requires a compatible controller and pumps, correctly installed and configured. The standalone C800 Pro does not include pumps; kit contents depend on the configuration.

Does the W650 Pro have a display and its own mobile data connection?

Readings are viewed in the Aqua Master Tools app; the W650 Pro has no built-in display. Its connected features require Wi-Fi. The smartphone shown in some images is not included.