Soil PH/Moisture Meter,niceEshop(TM) 3 in 1 Soil Tester Moisture Meter, Light and PH Acidity Tester, Plant Tester for Garden/ Farm / Lawn / Indoor & Outdoor (No Battery Needed) 3-in-1- You can measure the soil MOISTURE, PH &amp; LIGHT levels by one soil meter, make your plants grow healthy and strong Easy to Use: just need plug and read, very convenient, easy to use No Battery Required: Simply insert the meter into the soil, and get your reading. No batteries or electricity needed Let you know your soil: when to water, control PH level, determine if plant getting adequate light Compact and Portable- Perfect for Indoor and outdoor use