Our soil tester fastly to measure soil PH+Humidity+Temperature+Light to help you take better care of flowers and plants.You can know when you need to water your soil by measuring moisture and pH & Temperature value of the soil and sunlight level of plants with it. Can quickly and accurately measure the pH, moisture and temperature in the soilwith the light intensity of the light sensor analysis on the instrument, it can allow you to know when to water, to control the pH and temperature acidity, and determine whether the plants have enough light to better cultivate the plants more scientifically. Just simply plug the probe into the soil about 4 inches10cm) , wait 10 seconds to read intuitive data,and you will get an accurate and precise reading immediately.Just need remove probe from the soil and wipe it clean after using.This soil tester cannot be used directly to test any liquid. When measuring the soil, if the soil is too dry, do not insert it into dry and hard soil, otherwise the testing machine will be damaged. Both indoor and outdoor can be used. The plant measuring instrument can be used for your garden, farm, potted plants, succulent plants, etc.