This 4-in-1 multifunctional soil tester can quickly measure soil moisture, pH value, temperature, and light intensity, helping users better care for flowers and plants. By measuring soil moisture, pH value, temperature, and the light level around plants with it, users can accurately grasp the timing of watering and maintain plants scientifically.It is equipped with a large-screen backlit LCD display. The white backlight design allows users to conveniently view and read digital parameters whether in daylight or dark environments. This soil tester requires 4 AAA 1.5V batteries (batteries not included) and will send a low-battery alert to prevent usage issues caused by insufficient power.It is easy to use: simply insert the probe into the soil to a depth of approximately 4 inches (10 cm), wait for 10 seconds to read the intuitive data, and you will immediately get an accurate and precise test result. (Note: This soil tester cannot be directly used to test any liquid. When measuring soil, do not insert it into dry and hard soil if the soil is too dry. Before testing, please water the soil in the test area and wait for 10 minutes; otherwise, the tester may be damaged.) When testing soil pH value and moisture, you need to read data from at least 5 locations in the soil. The average of all data will be the final soil pH value and moisture level..