Features:[Monitoring]Professional pH tester is used to test pH, light, temperature, and moisture of soil to help achieve the optimal level for crop growth.[Easy to Use]Insert 2/3 of the probe into the soil, and then switch the switch to temperature, humidity, light, or pH.[LED Screen]LED high-definition backlight panel, clear reading of data anytime and anywhere.[Indoor Outdoor Use]The design of the soil tester is light and portable, easy to carry around for outdoor use.[Widely Applicable]Ideal for garden, lawn, farm, indoor outdoor, both soil-less mixtures, and soil has grown plants.