Neewer&reg; (2 Pieces) 3-in-1 Plant Flowers Soil PH Tester/Moisture Meter /Light Meter For Outdoor Indoor Plants Gardens & Grass Lawn This multi-purpose meter to help provide a healthy growing environment for all plants It tests for soil alkalinity / acidity, soil moisture For outdoor & indoor plants, gardens & grass lawn Take the guess work out of your daily garden watering and moisture Save water, energy and keep your plants, lawn, flower in top condition