Features: Perfect tool to test the soil conditions ( Moisture/Light/PH) of fruits, flowers, vegetables, shrubs, etc. Ideal and necessary tool for gardeners, vegetable and fruit growers, and all those who plant trees and grass With high accuracy and easy operation. You can take good care of your plants. Take the guess 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. Specifiaction: Color : Green Probe length : App180mm Total size : Appr. 260 x 58 x 36mm Material : Plastics + stainless metal Moist readings range : 0 DRY-10 WET Light readings range : 0 DARK-2000 LUMEN PH readings range : 8 ALKALIN-3.5A CIDIC Multifunctional : Can test Moisture / Light / pH Moist value (1-10RH): 1-3(Red): need to water 4-7(Green): favorable moisture 8-10(Blue): too wet pH value (8-3.5): Neutral solution : =7 Acid reaction : 7 Light value (0-2000 Lux) : Higher values mean the greater the intensity of the light Help you to determine if plant getting adequate light Package included: 1 x Moisture/Light/PH Tester How To Use : Step 1 : Switch moisture/pH/light position Step 2 : Stick the probe into the soil about 2-4 inches Step 3 : Adjust the position of the probe until the pointer on the dial swing slightly Step 4 : After 10 minutes, Note moisture/pH/light level in the dial Step 5 : 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