4 IN 1 FUNCTIONALITY: This soil ph meter accurately measures soil moisture (grade 5), temperature (16F to 122F), pH acidity (3.5 to 9.0) and sunlight intensity (grade 9), helping to improve Monitor the growth environment of plants well and provide scientific value for planting guidance. Large LCD Display: Clear reading scale allows you to get the value easily and accurately. The backlit LCD screen is easier to read, day or night. Simple operation: insert 1 9V battery (not included) and insert the soil test kit into the soil about 10cm. And by pressing the "ON" button, you can easily and quickly read the value through the LCD display within 5 seconds. Close the probe cover when not in use. Will this soil survey tool automatically shut down after 5 minutes? non-operational. PORTABLE AND COMPACT: The small ultra-portable design is easy to carry, suitable for indoor and outdoor use. It's perfect for gardens, backyards, potted plants, farms and more. Size: 31.5x6.5cm Use occasion: Soil tester is suitable for planting flowers and landscaping