っcurate & Reliable㓯il pH Meter, test soil moisture professional. Avoid sticking your finger into soil to test the moisture of soil. And without guesswork to know when plants need watering. PH sensor and can become a good help for your plants growth care. ㎯ Battery Needed㎯ need to use batteries or plug in a power source. you just put the sensor probe into the soil for around 2-4 inches and use the switch to either measure moisture, light, or pH levels. ㅁSY TO USE㓩mply switch to moisture mode, pH mode or light mode, and just insert the probes into the soil about 2-3 inches (2/3 of the probes), and you will get an intuitive data immediately. Remove probe from the soil and wipe it clean after each use. 㗩dely Use㓵itable for both indoor & outdoor. 3-in-1 Tester Kits with Moisture, Light and PH Test for Garden, Farm, Lawn, Indoor Outdoor Plants. so you could bring your vegetables, flowers, grass, or other plants to life. ㋩ndly NOTE㔨is Soil pH Meter, can not be applied to test any other liquid. If the soil is too dry the indicator will not move, water it before testing. get accurate results after 30 seconds.