Aqua Master Tools pH Meter Earth Substrate S300 Pro 2

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  • The pH meter is specifically designed for soil or other moist and soft substrates
  • Measures pH value and temperature
  • Pre-calibrated pH electrode
  • Comes with batteries
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pH Meter Soil-Substrate S300 Pro 2 by Aqua Master Tools for Soil

Are you looking for a reliable pH meter for soil, coconut coir mix, or other moist substrates? Then the pH meter Soil-Substrate S300 Pro 2 is just what you need!

Easy Operation and Robust Design

The S300 Pro 2 by Aqua Master Tools features a robust housing, is extremely easy to use, and comes with the batteries included. Another highlight of the pH meter is the high-quality pH electrode, which enables precise measurements in moist substrates and ensures that you always have the correct pH value for your soil. The meter comes pre-calibrated, and a replacement electrode is available from us at any time.

Technical Specifications of the pH Meter Soil-Substrate S300 Pro 2

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)

Measurement Accuracy

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

Additional Data

  • Temperature Compensation: 0°C - 50°C (32°F - 122°F)
  • pH Calibration: 2-Point Calibration with 4.0 - 7.0 pH
  • Display for Correct Calibration
  • Features: Battery Indicator & Automatic Temperature Compensation
  • Power Supply: 3 × 1.5 Volt AG-13 Button Cell
  • Auto-Off: 8 Minutes
  • Waterproof: IP65 (Electrodes IP67 Waterproof)
  • Dimensions: 220 x 40 x 40 mm
  • Weight: 158 Grams

Using the S300 Pro 2 Substrate

  1. Connect the BNC plug of the electrode to the pH meter and remove the protective cap with storage solution.
  2. Rinse the electrode under running water and dry it with clean kitchen paper.
  3. Turn on the pH meter with a button press on On/Off.
  4. Place the electrode in the (soft) substrate or the liquid to be measured. Ensure that the substrate is well moistened for the meter to function properly.
  5. Wait until the reading stabilizes and the measurement is complete.
  6. Save the measurement with a press of the HOLD button. Don't forget to press the HOLD button again if you want to use the meter again.
  7. Rinse the electrode with clean water after use and place it in the protective cap with storage solution.
  8. Turn off the pH meter with a press of the On/Off button.

We recommend storing the meter with the KCl storage solution in the protective cap to ensure long-lasting enjoyment of your device.

What's Included in the Package

  • 1x pH Meter Soil-Substrate S300 Pro 2
  • 1 x User Manual (NL + EN + DE)

Benutzerhandbuch Substrat pH/Temp S300 Pro 2

Manufacturer: Aqua Master Tools
SKU: am-012
GTIN: 8785258333750
Geeignet für‍: Home GrowIndoor GrowOutdoor Grow
Shipping weight‍: 0,23 kg
Item weight‍: 0,13 kg



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