Reliable and accurate: Sensing probe ensures accurate and instant testing results, matching for both indoor or outdoor use. Easy to read: Large and clear dial, including ten scales, plug and read. How to use: Simply insert the moisture meter into soil and you'll get the test result instantly. 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 very hard soil 2. Never use it to test water or other liquid. Designed for testing soil only. 3. After use, please wipe clean the probe.