Spécification: Features: 1. Good Helper for Gardening: For soil moisture measurement, it can effectively measure the humidity in the plant soil and master the suitable conditions for the growth of various plants; the accurate soil humidity can be read out by inserting the probe into the root soil. 2. No Need for Batteries: Easy to use, measure the soil moisture of plants through the electrolysis value of organic nutrients in the soil, and the probe can be read by inserting the probe into the root, no batteries or electricity needed. 3. Application: Suitable for your garden, yard, lawn, farm, potted plants, etc. Especially is important for some delicate plants, which are very sensitive to over or under watering. 4. Instructions: First, insert the probe as deep as possible into the soil, about 3/4 of the way into the probe. Measuring range 1-10 values, values 1-3 DRY are dry, values 4-7 MOIST are suitable, values 8-10 WET are wet. Please adjust the soil moisture according to the species