This product is simple to use. Just insert the product to the soil and wait a few seconds to see the temperature, moisture, sunlight intensity and PH of the soil, so that you can improve the soil environment in time and make plants healthier. Features: Large screen makes reading more convenient and clearer. With backlight function, you can read clearly in dim environment. Protect the soil acid-base balance, and make plants grow nicer. Accurate and quick test, simple operation. Compact size, easy to operate, convenient for carrying and long service time. Specifications: Main color: black PH measuring range: 4.0-10.0 Battery: 9V battery (not included) Item size: 300 * 55mm / 11.8 * 2.2in Package size: 310 * 65 * 40mm / 12.2 * 2.6 * 1.6in Package weight: 148g / 5.2ounce Packing List: 1 * Soil Tester