4-in-1 functionality. This soil PH meter accurately tests soil moisture (level 5), temperature (16°F to 122°F), PH acidity (3.5 to 9.0) and sunlight intensity (level 9), helping to better monitor the growing environment of plants and providing scientific value for planting guidance. Large LCD display. The clear reading scale makes it easy to get the values accurately. The backlit LCD screen makes it easier to read both during the day and at night. Easy to operate. Insert a 9V battery (not included) and insert the soil test tool approximately 10 cm into the soil. Press the "ON" button and you can easily and quickly read the values via the LCD display within 5 seconds. When not in use, close the probe cover. The soil measuring tool will automatically switch off after 5 minutes of non-operation. Size: 122mmx63mmx36mm Portable and compact. The small, ultra-portable design is easy to carry and is suitable for both indoor and outdoor use. It is perfect for gardens, backyards, potted plants, farms and more. Usage occasions. The soil tester is suitable for growing flowers, grasses and landscaping indoors and outdoors. It is also an ideal tool for agricultural production. 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.