Features: 2 in 1 multifunction soil tester: fertility/PH test. Fertility condition: too little/ideal/too much; The PH ranges from 9 to 1 (alkaline to acidic). Easy, precise, fast and stable e. 3-Probe detection, insert the electrode into the soil to be tested. For soil testing only. Pointer dial shows fertility status and PH value clearly, convenient to read. Adopts mechanical principle, with induction of electrode; More convenient e, energy and money saving. Compact and lightweight, easy to carry. Easily measure soil condition in garden/greenhouse/farm/orchard/potted plant etc. directly on site with this portable soil meter. Fertility Test: 1. First remove about 5cm from the soil, then grind the soil to a depth of 13cm and clean any organic impurities that may affect the test results in the soil, such as leaves, roots, etc. 2. Dampen soil with water before testing. 3. Clean the probes with a wipe or cloth. 4. Select fertility test mode. 5. Insert the electrode (above 60mm) into the soil, wait about 10s and read the value. 6. Save data. Remove the tester from the soil, clean and dry the probes. PH Test: 1. First remove about 5cm from the soil, then grind the soil to a depth of 13cm and clean any organic impurities that may affect the test results in the soil, such as leaves, roots, etc. 2. Moisten the soil with water before testing (preferable e rainwater or distilled water). 3. Select PH test mode. 4. Moisten 3 probes and clean the correct probe with a wipe or cloth. 5. Insert the whole electrode into the ground, wait for about 1 minute and read the value. 6. Save data. Remove the tester from the ground, clean and dry the probes.