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Operating Instructions for the
Accurate pH 8 — Soil pH and Soil Moisture Meter
Specifications: Accurate pH 8
pH Range: 3.0-8.0 pH.
Moisture Range: 1-8 degrees of moisture present. #1 representing wet, #8 representing dry.
Resolution: 0.2 pH.
Accuracy: ±0.2 pH - Suitable for Agricultural Field and Classroom Experiments.
Operating Temp: 45-120 Degrees Fahrenheit.
Calibration: Remove oxidation and oils from entire electrode by light polishing.
Power supply: None – No batteries required
Service: No serviceable parts inside. Do not disassemble. Manufacturer repair only.
Warranty: Replacement or Repair Warranty: 6 months for defective parts and materials
from date of manufacture. Proof of purchase required. Warranty does not cover submersion in
liquids, storage in high humidity locations or abuse.
Waterproof to body only. Avoid splashing water or rainfall on or around the body and moisture
button. Not for use in the rain.
Operating Instructions
1. Before using the meter you must lightly polish the
entire electrode to remove any oxidation or oils
present before first use or after storage. Use the
enclosed polishing pad or a similar pad found at
most department stores. Scouring powder may be
used to clean the electrode should it become highly
oxidized or oily. Filing or grinding is not needed and
will void the warranty.
2. Make sure the soil has been moist for 25-30
minutes before testing. This will assure that the soil
particles can transfer the proper electro conductivity
charge to the meter and all soluble elements and compounds that could change the pH of the soil
are present and in reaction with one another. Soil pH may change after the addition of fertilizer.
When added, organic fertilizers have the tendency to create less pH change to the soil. Chemical
fertilizers have the tendency to create more pH change to the soil when added. Wet and dry soils
will make it harder to determine pH.
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