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How To Use ►Step 1: Push the switch to moisture/pH/light position ►Step 2: Stick the probes into the soil 4-6 inches (2/3 of the probes) ►Step 3: Adjust the position of the probes until the pointer on the dial swing slightly ►Step 4: After 10 minutes, note moisture/pH/light level in the dial ►Step 5: Remove probes from soil and wipe clean after each use Basic Characteristics ■ 3-in-1 Function ■ Moisture Test ■ PH Test ■ Light Test ■ Multi-function ■ Accurate & Reliable ■ INDOOR & OUTDOOR USE ■ White Scales & Black Background