ETP303 2-in-1 Soil Fertility pH Meter
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- Give accurate results of the pH and fertility of the soil
- No batteries required
- pH portion of the tester utilizes the chemical reaction known as oxidation-reduction to measure pH within the range of 1-9
- Fertility portion of the tester measures the soil's nitrogen, phosphorous and potash (NPK) content, in combination
- Fertility is within the range of too little, ideal and too much, with probe 85mm