Peyou Moisture Meter, Professional 3-in-1 Soil Moisture Meter with pH Acidity for Home& Gardening & Farming, Moisture and Sunlight Testing Usage,Indoor & Outdoor Simple Soil Testing: This 3 in 1 meter makes testing the soil very easy! You can measure the soil moisture, pH, and light levels in seconds, so your plants can grow healthy and strong No Batteries: Simply push the meter into the soil, and you'll get your reading. There's no need for batteries like some other meters Compact for Indoor, & Outdoor Use: Know when to water, adjust pH, or change lighting for your garden, flowers, plants both indoor and outdoor Learn About & Test All Types Of Soil. Extra probe on meter allows it to test all three important elements of the soil. Great tester / test kit / hydrometer Best Price & Best quality &Bset service