Features: Perfect tool to test the soil conditions ( Moisture/Light/PH) of fruits, flowers, vegetables, shrubs, etc. Ideal and neceary tool for gardeners, vegetable and fruit growers, and all those who plant trees and gra With high accuracy and easy operation. You can take good care of your plants. Take the gue work out of your daily garden watering light and moisture. Save water, energy and keep your plants, lawn, flower in top condition. Measures moisture at root level. No battery required, simple and convenient to use. Simply insert the meter into the soil, switch to the setting you want to measure and read the scale. Moisture: 1-3 Dry(red zone) 4-7 Moist(green zone) 8-10 Wet (blue zone) This product only tests soil ,etcfor dry flour,smallstones,there are building blacks,sawdust,etc.notapplicable Instructions: Moisten the soil with water before inserting the soil the probe should be inserted into the soil 2/3 of the depth(above 10cm)this will make the measurement more accurate inserting the two pointed tips will have no effect and will not move. How To Use : Step 1 :Stick the probe into the soil about 2-4 inches Step 2 :Adjust the position of the probe until the pointer on the dial swing slightly Step 3 :After 10 minutes, Note moisture level in the dial Step 4 :Remove probe from soil and wipe clean after each use Warm Tip : Without touching the stone, don't too hard, easy to damage the probe After using, need to clean and wipe the probe (can't test the water) Don't inserted in the soil for a long time for using Design for testing soil, don't use it to test pure water or too rigid ground