[No Battery Needed]No need to use batteries or plug in a power source. Just insert the probe into the soil and get accurate results after . The compact design making you use on your farm easily. [Widely Use]Suitable for both indoor & outdoor. With design plant meter can be use for your garden, farm, potted plants,succulents, etc. With the upgraded design of 7.7 inch long probe, it can also be used for your large potted plants. [Accurate & Reliable]Soil Moisture Meters test soil moisture Avoid sticking your finger into soil to test the moisture of soil. And without guesswork to know when plants need watering. Widely Using: suitable for more than 200 plant indoor and outdoor, such as farm, garden etc.. But just for SOIL MOISTURE METER ONLY!, Weight: 0.53351867404 pounds, Manufacturer: tiyao