Description: 100% Brand new and high quality For outdoor and indoor plants, gardens and grass lawn. Save water, energy and keep your plants, lawn, flower in top condition. Easy to use, just insert and read. No battery required, simple and convenient to use. Specification: Material: Plastic Color: Black Size: Approx. 260x105x30mm/ 10.24x4.13x1.18 inch Measuring pH Range: 0-9 Fertility Range: Too Little, Ideal, Too Much Analyze pH value / fertility: 1. Remove about 5cm topsoil, then dig the soil down to 13 cm deep. And clean up all the organic impurities in the soil that will affect the test results, such as leaves, roots and so on. 2. Moisturize the soil with water to make it muddy.(Better to use rain or distilled water.) 3. Set the function key to the rightmost(for fertility analysis: leftmost) position. 4. Wet the probe. Wipe the rightmost one of the three probes with a clean cotton sheet(for fertility analysis: wipe all probes). 5. a) For pH value analysis: insert the probe completely into the soil under test. Wait 1 minute to read the data. b) For fertility analysis: insert the probe into the soil until the distance between the main unit and soil is less that 2.5cm. Wait up to 10s, read the data when the pointer is stable. 6. After the test, wipe the probe and dry it. Fertility Analysis: Unit: ppm(Parts per Million) Lack (Too Little): Nitrogen: Less than 50ppm Phosphorus: Less than 4ppm Potassium: Less than 50ppm Ideal Range (Ideal): Nitrogen: 50-200ppm Phosphorus: 4-14ppm Potassium: 50-200ppm Excess (Too Much): Nitrogen: Greater than 200ppm Phosphorus: Greater than 14ppm Potassium: Greater than 200ppm Package Includes: 1 Piece of 2 in 1 Soil Tester