3 in 1 Soil Moisture Fertility Meter Water PH Tester Fertility Soil Meter Gardening Detector for Plants PH Monitor Detector  3-In-1 Soil Tester -- You can measure soil moisture, soil fertility, and soil pH value of plant. It's helpful for you to control watering and apply fertilizer for your plants to help them grow healthy and strong.  Specifications:  Material: ABS  Function: PH Meter + Moisture Meter + Fertility Meter  Moisture Range: 1-10 (1-3: DRY, 4-7: NOR, 8-10: WET)  PH Range: 1-8 (1-4: ACIDIC, 5-7: NOR, 8: ALKALINE)  Fertility: Little, perfect, much    Features:  1.Easy to Use -- No batteries required, just insert the sensor probe into the soil over 10cm toggle switch to test moisture, fertility, and pH you would like to measure, then wait for a few minutes till the pointer stops swinging to get a stable reading on the scale dial. 2.Accurate & Reliable -- Premium Double-needle Detection Technology strongly enhances the speed and accuracy of detecting and analyzing soil moisture and pH acidity, promote plant growth in a healthy way.  3.Notice -- Do not touch the stone or hard rock soil, if the soil is too hard and dry, easy to damage the probes. This soil tester CAN ONLY be used in soil, it CANNOT be used to test any liquids. After using, need to clean and wipe the probes.