This is an easy-to-use instrument to test the Light/ PH/ Moisture of soil. It's accurate and fast, can be widely used in greenhouse, farm, garden, orchard, etc. No battery required, which is energy-saving and environmentally-friendly. Features: 3 in 1 multifunction soil tester: Light/ PH/ Moisture testing. Illumination ranges from 0 to 2000, PH ranges from 8 to 3.5, moisture from 1 to 10. Easy, accurate, fast and steady to use. Insert 2/3 of the electrode (above 10cm) into soil which is to be tested. For soil testing ONLY. Pointer dial clearly displays the illumination (dark or bright), moist (dry or wet) and PH values (alkaline or acidic); select one mode and read the corresponding value. Adopts light sensor, no battery required for power supply. More energy-saving and environmentally-friendly. Compact and lightweight, easy portability. Easily measure soil condition in garden/ greenhouse/ farm/ orchard/ potted plant, etc. right on the spot with this portable soil meter. Note: 1. Moisten the soil with water before testing; insert 2/3 of the electrode (above 10cm) into soil for accurate readings. 2. Avoid touching stones; do not insert with too much force; clean the electrode in time after using; never immerse into water for testing. 3. Do not insert into soil for long time to avoid damage. 4. Size and color may be slightly different due to manual measurement and different light conditions. Thanks for understanding. Specifications: Color: Dark Green Material: Plastic + Metal Range: Illumination: 0-2000 (Dark to Bright) PH: 8-3.5 (Alkaline to Acidic) Moist: 1-10 (Dry to Wet) Work Temperature: -10~60 Probe Size: 180 * 5mm / 7.09 * 0.2in (L * Dia.) Item Size: 255 * 60 * 35mm / 10.04 * 2.36 * 1.38in Item Weight: 80g / 2.82oz Package Size: 28 * 12 * 4cm / 11.02 * 4.72 * 1.57in Package Weight: 90g / 3.17oz Package List: 1 * Multifunction Soil Tester