Moisture meters support healthy, thriving plants by helping you monitor soil moisture levels, making it easier to prevent both overwatering and underwatering. Our 3-in-1 Moisture Meter helps to measure soil moisture, pH levels and light. For a simpler option, a basic moisture meter is also available—perfect for those who just want to know when it's time to water without the extra features.  To use, stick the probe 2-4 inches into the soil and adjust until the dial swings. After 10 minutes note the moisture/pH/light level in the dial. Remove and wipe clean after use. 3-in-1: tests moisture, pH value and light level using two 20cm probe and a light sensor with three calibration tables for high accuracy and response Basic Moisture Meter: tests for just moisture using a single 20cm probe Good for indoor or outdoor use No battery needed Helps prevent over watering