3 In 1 PH Tester Soil Water Moisture Light Test Meter Sunlight Sensor For Ga BL
3 in 1 Soil Tester: 1. You will never over/under water your plants.2. Sunlight Guage - H. Step 5: Remove probe from soil and wipe clean after each use. Step 3: Adjust the position of the probe until the pointer on the dial swing slightly.