Note: 1. Insert the probe vertically, at the edge of the middle stem. 2. Please gently push into the soil to avoid damaging the probe. 3. If the measured soil is too dry or fertile to give an accurate PH, the user can sprinkle water and measure it again half an hour later. 4. Please install the battery before use and remove the white protective cover of the probe. Features: 1. The product can measure the current light intensity (Low, LOW, LOW +, NOR, NOR, NOR +, hGH, HGH, HGH +) environment. 2. Moisture content measurement (DRY +, DRY, NOR soil, WET, WET+). 3. Measurement of floor temperature, temperature range: 0-100℃, degrees Celsius and degrees Fahrenheit can be switched (accuracy by the legend: 1 ℃ / 1 ℉). 4. Oversized LCD with clear display, backlight and auto power off. 5. This instrument is a great tool for measuring growing conditions of all kinds of indoor and outdoor plants as well as garden evanescence. A very useful one in lawn care to determine soil conditions in different areas of the garden and finding correct grass seed. Specifications: Size: 122mm*63mm*36mm Battery: 1 * 9V battery (not included) PH measurement range: 0-14" Package Includes: Soil PH Tester * 1