SOIL MOISTURE METER: This soil moisture meter is only for testing soil moisture level, make your plants can grow healthy and strong(DO NOT test pure water directly) EASY TO USE: 7.6" probe length, simply insert the plant moisture meter into the soil 4-6 inches(2/3 of the probe), and you'll get your reading NO BATTERY NEEDED: No batteries or electricity needed, plug and read COMPACT FOR INDOOR & OUTDOOR USE: No more guess work, know when to water for your garden, flowers, plants both indoor and outdoor SCIENTIFICALLY ACCURATE: Easy & accurately to read moisture promotes healthy plants