3 in 1 Humidity sensor Soil An appropriate soil environment is important for healthy plant growth. This soil tester is designed to better know the condition of your plant, detect the humidity and humidity. from the ground, help you to know the pH value of the soil, determine if the plants are getting enough sunlight to keep the plants healthier Features: Material: ABS Plastic PH Range: 3.5-8 PH (3.5-6.5 acidic, 7-8 alkaline) Humidity Range: 1-10 (1-3 sec, 4-7 Normal, 8-10 Wet) Intensity luminous: 0-2000 lux (0-200 low, 200-500 low+, 500-1000 ordinary, 1000-2000 high) Product size: 29 * 5 * 3.7 cm / 11.42 * 1.97 * 1 .46 inch Product Weight: 55g How To Use: Step 1: Proceed to . humidity / pH / light as needed Step 2: Stick the probes into the soil 2-4 inches (2/3 of the probes) Step 3: Note the moisture. / pH / light level in the dial Tips and Advice: 1. Do not touch the stone or hard objects because it will be easy to damage the probe 2. Do not use it to test pure water or other liquids. It can only be used than to measure the ground 3. Do not leave the player in the ground for a long time 4. Remove the probe from the ground and wipe it clean after each use 5. If the soil is too dry, the indicator will not move