Product Description: Quantity: one set [Product Name]: Three-in-one ground finder [Product specifications]: English three-in-one round head [Product color]: Dark green [Function of the product]: light intensity / PH (pH) - humidity measurement [Product features]: no electricity required, plug and play, multi-functional in one. [Product weight]: about 90g [Product size]: 178mm 3 IN 1 FUNCTIONS The soil moisture meter can measure soil moisture, PH value and sunlight intensity. It can quickly help you focus on when you need to water your plants, check the soil pH and see if they are getting enough sunlight. SCIENTIFICALLY ACCURATE Quality dual-needle sensing technology greatly improves the speed and accuracy of soil moisture and pH acidity detection and analysis, helping your plants grow healthy and strong. Convenient to use: no batteries needed, just insert the sensor probe into the soil about 2-4 inches, flip the switch to test the moisture, pH, sunlight you want to measure, then wait a few minutes until pointer stops wobbling to get a stable reading on the scale dial. PORTABLE Easy to carry for indoor and outdoor use, the soil test is a great tool to manage your garden, flowers, plants, vegetables, shrubs, etc. This soil tester cannot be applied to test the pH value of other liquids. If the soil is too dry, the indicator will not move and water it before the test.