Function: 1. [Soil Testing Tool] The Soil Tester supports testing soil pH, soil moisture and light intensity, keeping the soil in top condition. 2. [Measuring range] The pH range is 3-8pH and the humidity measuring range is 1-8 (10 percent -80 percent ). High resolution, accurate and reliable measurement. 3. [Applicable occasion] Widely used in greenhouse planting, farmland planting, pot planting, gardening planting, tree planting etc. 4. [Garden accessories] Two detection functions, two modes are freely switchable, quick and practical to use, no batteries required, is a good helper in gardening. 5. [Easy to operate] Just insert our soil tester into the area of soil you want to check, you can get accurate readings immediately and support calibration. Specification: Item Type: Soil Tester Material: ABS Applications: greenhouse planting, farmland planting, pot planting, gardening planting, tree planting Support language: English Basic parameters: PH test range: 3-8pH Humidity test range: 1-8 (10 percent -80 percent ) Resolution: 0.2 PH Accuracy: 0.2 PH (suitable for agricultural experiment and in the classroom) Working Temperature: 5-50 (41-122 ) Calibration: Remove oxidation on metal ring by polishing Package List: 1 x soil tester 1 x Manual 1. If the soil at the measuring point is too dry or too much fertilizer to measure the soil pH, first pour water over the measuring point and wait 25-30 minutes before measuring. 2. Before using the measuring device, please wipe and clean part of the metal absorption plate with an abrasive cloth so that the measured value is not affected. If a new product is not used, there is protective oil on the surface of the metal plate and it should be pounded into the soil several times, and the protective layer of oil should be polished before use. 3. When determining the pH value, insert it directly into the soil of the measuring point, and the surface of the metal plate must be completely driven into the soil, the value obtained after about 10 minutes is the correct value. Density, moisture and over-fertilization of the soil can influence the measured value, so it should be measured several times in different places to find the average value. 4. The pH of the tester is stable after 10 minutes. At this point, press the side metal button and the humidity will be displayed immediately.