This is an easy-to-use instrument to test the fertility condition and PH value of soil. It's accurate and fast, can be widely used in greenhouse, farm, garden, orchard, etc. No battery required, which is energy-saving and environmentally-friendly. Features: 2 in 1 multifunction soil tester: Fertility/ PH testing. Fertility condition: too little/ ideal/ too much; PH ranges from 9 to 1 (alkaline to acidic). Easy, accurate, fast and steady to use. 3-probe detection, insert the electrode into soil which is to be tested. For soil testing ONLY. Pointer dial clearly displays the fertility condition and PH value, convenient to read. Adopts mechanical principle, with electrode induction; more convenient to use, energy-saving and money-saving. Compact and lightweight, easy portability. Easily measure soil condition in garden/ greenhouse/ farm/ orchard/ potted plant, etc. right on the spot with this portable soil meter. Fertility Testing: 1. First remove about 5 cm of topsoil, then mash the soil down to a depth of 13cm and clean any organic impurities that could affect test results in the soil, such as leaves, roots, etc. 2. Moisten the soil with water before testing. 3. Clean the probes with wipe or tissue. 4. Select the fertility testing mode. 5. Insert the electrode (above 60mm) into soil, wait for about 10s and read the value. 6. Record data. Remove the tester from the soil, clean and dry the probes. PH Testing: 1. First remove about 5 cm of topsoil, then mash the soil down to a depth of 13cm and clean any organic impurities that could affect test results in the soil, such as leaves, roots, etc. 2. Moisten the soil with water before testing (better use rainwater or distilled water). 3. Select the PH testing mode. 4. Moisten 3 probes and clean the right probe with wipe or tissue. 5. Insert the whole electrode into soil, wait for about 1 minute and read the value. 6. Record data. Remove the tester from the soil, clean and dry the probes. Note: 1. Avoid touching stones; do not insert with too much force; clean the electrode in time after using; never immerse into water for testing. 2. Do not insert into soil for long time to avoid damage. 3. Size and color may be slightly different due to manual measurement and different light conditions. Thanks for understanding. Specifications: Color: Black Material: ABS PH: 9-1 (Alkaline to Acidic) Fertility: Too Little/ Ideal/ Too Much Probe Length: 85mm / 3.35in Item Size: 178 * 60 * 30mm / 7.01 * 2.36 * 1.18in Item Weight: 62g / 2.19oz Package Size: 26 * 10.5 * 3.5cm / 10.24 * 4.13 * 1.38in Package Weight: 92g / 3.25oz Package List: 1 * 2-in-1 Soil Tester