Package content: 1pcs ground finder The 4 in 1 Soil Tester allows you to measure soil pH, sunlight intensity, humidity, and temperature for optimal plant growth. With 12 levels of pH measurement, 9 levels of sunlight intensity, 5 levels of humidity, and a temperature range of -9C to 50C (16F - 122F), you can easily monitor the conditions of your soil. Using the tester is simple - just gently insert the probe into the soil and the LCD screen will display the measurements. For more accurate results, insert the probe deep into the soil until it reaches the bottom of the plant root. The backlit LCD display makes it easy to view the measurements, even in the dark. The green backlight ensures visibility in low light conditions. The tester also features an auto shut-off function to extend battery life and a low battery indicator on the screen. Compact and portable, the 4 in 1 Soil Tester is powered by a 9V battery (not included), making it convenient to use anywhere. Ensure the optimal conditions for your plants with this versatile and reliable soil tester.