Please Note: This soil tester can not be applied to test the pH value of any other liquid. If the soil is too dry, the indicator will not move and water it before testing. 3-IN-1 FUNCTION: Test soil moisture, pH value and sunlight level of the plant with our soil meter, helps you specialize in understanding when you need to water your plant. ACCURATE AND RELIABLE: Double needle detection technology highly improves the speed and accuracy of detecting and analyzing soil moisture and pH acidity. EASY TO USE: No battery needed, just insert the sensor probe into the soil about 2-4 inches, toggle switch to test the moisture, pH and sunlight you want to measure. INDOOR AND OUTDOOR USE: Lightweight and portable design, easy to carry for outdoor use, ideal soil testing tool kit for home plants, garden, lawn and farm. Color: Green Size: Product size: total length about 293mm. Probe length: about 200mm Quantity delivered: 1 piece becomeveryrich