3-In-1 Multi-Function -Using our Soil Moisture Meter to test the soil moisture, sunlight level, and pH value of plants,help you understand the soil condition in real-time. Accurate & Sensitive - Double-needle Detection Technology strongly enhances the speed and accuracy of detecting and analyzing soil moisture and pH acidity. Easy To Use - No Batteries Required＠Large and clear dial＊ust plug and read.Just insert the sensor probe into the soil about 2-4 inches, If the plant is very dry, the soil pointer will not display data. Warm Tips - 1.This Soil Moisture Meter can not be applied to test any other liquid. Designed for testing soil only. 2.If the soil is too dry, the needle will not move,please water it before testing.3. Do not use it to test very hard soil.4.Take probe out from soil and clean it after each use.5.The soil pH value of most plants is close to neutral, so the range of change of the test pH needle will be very small. Widely Applicable - Suitable for home garden breeding, rice planting, vegetable planting, forest planting, potted plants, flower planting, greenhouse planting, garden planting, soil testing, etc., to meet all your needs for soil testing.