3 in 1 Functions: You can measure soil moisture, pH value and sunlight intensity with this soil tester. It is useful for you to plant flowers and other plants, make them grow healthy and strong (this soil tester can only be used in soil, it can not be used for testing liquids). Scientifically accurate: a sensitive probe could detect changes in the soil and transfer the details to the driver, displaying the precise values for you, you will be able to accurately capture the growing environment of the plants. Easy to use : Press the button to select the value you want to test, then just insert the probes into the soil more than 4 inches (2/3 of the probes), and you will get your reading. Widely Used: Suitable for Plants indoor and outdoor, know when to water, adjust pH or change lighting, helps you grow plants and flowers in a more scientific way. No batteries needed: No batteries or electricity needed, just plug in and to read, energy saving and environmental protection, very convenient to use. 3 in 1 Functions: You can measure soil moisture, pH value and sunlight intensity with this soil tester. It is useful for you to plant flowers and other plants, make them grow healthy and strong (this soil tester can only be used in soil, it can not be used for testing liquids). Scientifically Accurate: A sensitive probe could detect changes in the soil and transfer the details to the driver, displaying the precise values for you, you will be able to accurately capture the growing environment of the plants. Easy to use: Press the button to select the value you want to test, then just insert the probes into the soil more than 4 inches (2/3 of the probes), and you will get your reading. Widely Used: Suitable for indoor and outdoor plants, know when to water, adjust pH or change lighting, help you grow plants and flowers in a more scientific way. No batteries needed: No batteries or electricity needed, just plug in and read, power saving and environmental protection, very convenient to use. Specifications: Material: Plastic + Stainless steel Size: 26 x 6.2 x 4 cm / 10.23 x 2.44 x 1.57 inches Probe length: 17 cm / 6.69 inch Wet reading range: 0DRY-10WE Light reading range: 0DARK-2000LIGHT pH measuring range: 3.5-8 Note: 1. Before inserting the ground, please soak the ground with water. The probe should be inserted into the soil 2/3 of the depth (above 10 cm). 2. When using, be careful not to touch the stone, do not use too much force, otherwise it will easily damage the probe. Wash the probe in good time after use (it is strictly forbidden to enter the water directly for the measurement).