Features1It's lightweight and portable design, convenient for indoor and outdoor use. 2Easy to use: This 3-in-1 moisture meter with light & ph test function dont need batteries, and you can use it indoor or outdoor. Insert probe into soil around 2-4 inches, then toggle switch to tester what you want to measure. 3Accuracy Reading: Moisture Range: 1-10 (1-3 Dry, 4-7 Nor, 8-10 Wet), Relative Light: 0-2000lux (0-200 Low, 200-500 Low+, 500-1000 Nor, 1000-2000 High), pH Range: 3.5-8ph (3.5-6.5 Acid, 7-8 Alkaline). 4Extermely practical & easy to use! No need for batteries or preparation; you simply plug our soil tester in the soil area you want to check and instantly get an accurate and precise reading. 5Can measure soil moisture\PH degree\the strength of sunlight required for plant photosynthesis.SpecificationFeature: It's lightweight and portable design, convenient for indoor and outdoor use.Easy to use: This 3-in-1 moisture meter with light & ph test function don't need batteries, and you can use it indoor or outdoor. Insert probe into soil around 2-4 inches, then toggle switch to tester what you want to measure. Accuracy Reading: Moisture Range: 1-10 (1-3 Dry, 4-7 Nor, 8-10 Wet), Relative Light: 0-2000lux (0-200 Low, 200-500 Low+, 500-1000 Nor, 1000-2000 High), pH Range: 3.5-8ph (3.5-6.5 Acid, 7-8 Alkaline). Extermely practical & easy to use! No need for batteries or preparation; you simply plug our soil tester in the soil area you want to check and instantly get an accurate and precise reading. Can measure soil moisture\PH degree\the strength of sunlight required for plant photosynthesis. Speciation: Material: Plastic Size: 26 x 6 x 3.5 cm / 10.24 x 2.36 x 1.38 inch (appr.) Probe length: 17.5cm / 6.89 inch (appr.)How to use: Step 1: toggle switch to moisture/ pH/ light position. Step 2: Stick the probe into the soil about 2-4 inches. Step 3: Adjust the position of the probe until the pointer on the dial swing slightly. Step 4: After 10 minutes, read the moisture/pH/light level in the dial. Step 5: Remove probe from soil and wipe clean after each use. Package included: 1 x Moisture Sensor Package List