Aqua Master Tools pH meter P50 Pro

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  • Measurement device from Aqua Master Tools for measuring pH value and temperature in nutrient solutions and liquids.
  • Easy handling and operation.
  • Versatile for hydroponics, mixing fertilizers, aquaculture, swimming pools, aquariums, laboratories, etc.
  • Long battery life and easy replacement.
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Delivery time: 1 - 2 Workdays

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ph messgerät p50 pro aquamaster
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pH Meter P50 Pro by Aqua Master Tools - Affordable pH Meter

Do you want to perform precise measurements of pH and temperature values in liquid nutrient solutions, swimming pools, aquariums, or ponds? Then the pH meter P50 Pro by Aqua Master Tools is the perfect choice for you. It is one of the newer models in the wide range of high-quality analysis products by Aqua Master Tools. With a single button press, you can easily switch between different parameters. The meter comes pre-calibrated and is delivered with batteries, ready for immediate use.

Using the pH Meter P50 Pro

  1. Before using the pH meter for the first time, you should soak it in tap water for 12 hours.
  2. Remove the protective cap.
  3. Clean the pH electrode carefully with distilled water and then dry it.
  4. Press the power button to turn on the meter.
  5. Hold the pH probe vertically in the aqueous solution and gently swirl it. Wait a few seconds until the values are displayed on the screen and are no longer fluctuating.
  6. Use the C/F button to switch between Celsius and Fahrenheit units.
  7. Rinse the electrode with water after use and press the power button to turn off the meter.

It is recommended to store the pH meter upright with KCl solution in the protective cap.

When Should You Calibrate Your pH Meter?

To ensure accurate measurements, it is important to regularly calibrate a pH meter. It is generally recommended to calibrate the pH meter before each use and at least once a month.

During calibration, the pH probe is immersed in calibration solution to verify and adjust the accuracy of the meter. Calibration solutions typically have pH values of pH 4 and pH 7.

When Should You Clean Your pH Meter?

To ensure that your pH meter provides accurate measurements, it is important to perform regular cleaning. It is recommended to clean the meter after each use and at least once a week.

How Should You Clean Your pH Meter?

There are several steps to consider when cleaning a pH meter:

  1. First, remove the meter's electrodes from the solution and rinse them thoroughly with water.
  2. Then, dissolve some cleaning solution in water and immerse the electrodes in it. Let them soak according to the cleaning solution's instructions to remove impurities.
  3. Rinse the electrodes thoroughly with water to remove all cleaning solution residues.
  4. Dry the electrodes before reinserting them.
  5. Clean the meter's housing with a damp cloth and dry it thoroughly.

It is important to ensure that the electrodes are not damaged and that no impurities remain on the pH probe, as this can affect accuracy.

Technical Specifications of pH Meter P50 Pro

Measurement Range

  • pH: 0.0 ~ 14.0 pH
  • Temp.: 0°C ~ 50°C (32°F ~ 122°F)


  • pH: ± 0.1 pH
  • Temp.: 0.1 ºC (1.0 ºF)


  • pH: ± 0.1 pH
  • Temperature: ±0.5°C (32°F)

Additional Data

  • Temperature Compensation: 0°C - 50°C (32°F - 122°F)
  • Calibration: pH: 2 point auto 4.0 - 7.0 pH
  • Features: Battery indicator & Auto temperature compensation
  • Power Supply: 3 × 1.5 Volt AG-13 button cell (included)
  • Auto Shut-off: 8 minutes
  • Calibration Indicator: When calibrated correctly
  • Waterproof: IP67
  • Dimensions: 220 x 40 x 40 mm
  • Weight: 102 grams

Included in the Package

  • 1 x pH meter P50 Pro
  • 1 x User Manual (NL - EN - DE)
  • 3 × 1.5 Volt AG-13 button cell
Manufacturer: Aqua Master Tools
SKU: am-001
GTIN: 8785258333682
Geeignet für‍: Home GrowIndoor GrowOutdoor Grow
Shipping weight‍: 0,16 kg
Item weight‍: 0,10 kg



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