[4-IN-1 Soil Moisture Meter and Soil PH Meter and Light Meter and Soil Temperature Meter]When you need the Soil Meter? If you're a garden enthusiast and would like to know more about your plants need to thrive. When your plants grow slowly. When the plantslooks unhealthy. [Plant Water Meter Power] Included One 9V Carbon-Battery. It can automatic shut down without any operation in minutes. Simple, Quick, Accurate and Save time to test. Please install the battery before using. [3 Steps Using Plant Moisture Meter] 1 Just insert the sensor probe into the soil for about 3-4 inches. 2 Switch function keys to Moisture, Sunlight, or pH. 3 Read measured levels of the soil. also use it as a Soil Thermometer to measure the temperature of the soil. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.