ITEM NAME:Soil Moisture Sensor Meter - Soil Water Monitor, Hydrometer for Gardening, L1A1 Soil Moisture Sensor Meter - Soil Water Monitor, Hydrometer for Gardening, L1A1 EASY TO READ: Large dial, including ten scales, Plug and read. HOW TO USE -- No batteries needed, Indoor or outdoor use. Simply insert the probes into the soil about 3-4 inches, and you'll get your reading perfect tool for indoor/outdoor plants, help your plants grow healthy and strong. LESS HURTs: Single Probe --Less hurts to the roots, doesn't dig up too much soil after test. IMPORTANT TIPs --1, Do not use it to test water. Do not touch the stone or hard rock soil, if the soil is too hard and dry, easy to damage the probes. 2. Never use it to test liquid. Designed for testing soil ONLY. 3. After use, please wipe clean the probe. T10 Moisture Meter tells you, instantly, whether your plants need water. With this meter, you will know that sometimes though the top of the soil looks dry, just beneath the surface it's very wet--no wonder the plants are struggling. It's very easy to use, just stick it in the dirt and the dial instantly tells you whether the soil is dry, moist or wet Tips Avoid hard stones when inserting probe as they may damage the probe Never put this meter into water. For some very loose soil, the reading may be inaccurate Don't leave it in the soil for more than an hour for use 1. Easy to read levels 2. No batteries needed 3. Indoor/outdoor use 4. Color coded reading system 5. For most plants colour:green Material:plastic size:26.5*5.5*3.5cm Package Contents: 1 * moisture meter