Reliable and Accurate: Detection probes ensure accurate and instant test results, suitable for indoor or outdoor use. Easy to read: Large clear dial, including ten scales, plug and read. How to use: Simply insert the meter into the soil and get the test results immediately. Help your plants grow healthy and strong. Less damage: only one probe, less root damage, do not dig too much soil after the test. Important notes : 1. Do not use it to test very hard ground 2. Never use it to test water or other liquids. Specially designed for testing soils. 3. After use, please wipe the probe clean. Package includes: 1* Hygrometer We only sell hygrometers and do not sell other items in the picture. Due to different display screens and manual measurement factors, there may be slight differences between individual items and photos