Nutri-Tech Expert pH Meter Kit

A valuable tool for monitoring pH, useful for testing soil water & fertiliser solutions. Includes a soil testing kit to make monitoring your soil quick and easy.

The pH scale ranges from 0 – 14 (acidic to alkaline or basic), with pH 7 being neutral. Soil pH affects the availability of nutrients to crops, and for most crops the ideal soil pH is 6.4. Soil pH can be measured quickly and accurately with the Expert pH Meter and soil test kit.

This meter can also be used for monitoring water quality and determining the pH of fertiliser solutions. This can provide valuable information regarding mix compatibility and allow the user to determine and fine tune the tank mix pH for optimum efficacy. The ideal pH for a foliar fertiliser application is 6.0 – 8.0.

Benefits

• Waterproof.
• Lightweight & pocket-sized.
• LCD display.
• Up to 3 point calibration.
• Auto buffer recognition.
• Automatic temperature compensation.
• Transparent cap for samples and storage.
• Auto-off 8.5 min.
• pH 4.0 and 7.0 buffer solutions included.
• Electrode storage solution included.
• Soil testing jar (graduated for accurate soil & water measurement) included.

CALIBRATION

Calibration Recommendation:

Perform a 2 point calibration at pH 7.0 & pH 4.0 using the buffer solutions included before first use and then weekly (if used less frequently than weekly, calibrate before each use). Follow the calibration instructions included with the meter.

Measurement:

The pH of water and fertilizer mixes, etc. can simply be measured by dipping the sensor in the solution as per the instructions included with the meter.

SOIL TESTING PROCEDURE

Sampling:

Wearing gloves to avoid contamination, take samples from 15 – 20 sites within the test area. Sample to a depth of 15 cm. Remove any plant matter from the top of the sample. Combine samples in a clean container and mix thoroughly. Take a small subsample of the mixed soil and fill the testing jar to the 25 mL mark with soil.

Using distilled water, fill the testing container to the 125 mL mark. This is a 1:5 soil to water mixture. Cap the jar and shake thoroughly for 5 seconds. Allow the contents to sit for 30 minutes. Swirl the solution then dip the pH meter probe into the soil/water solution and wait for a stable pH reading.

ELECTRODE STORAGE SOLUTION

Using this solution will extend the life of the electrode. After use, clean the pH meter probe with water and add approximately 10 mL of storage solution to the pH meter cap. Cap the meter and store upright (so that the electrode tip remains in the solution).

Note: The electrode cap is not completely watertight, so storing the meter upright is required to prevent leakage.

If the pH meter has been stored without storage solution for a long time, it may need to be conditioned before use. This can be done by soaking the electrode in storage solution as described above for a period of 1 hour before use.