Accurate and fast testing: This 4-in-1 soil pH meter allows you to easily and quickly determine the condition of the soil. This pH meter monitors pH, humidity, temperature, and light, helping you create a better growing environment for your plants. Improved technology and high precision: The improved probe detection technology significantly enhances the speed and accuracy of testing. Open the probe's protective cover before use, and the switch on the back should be set to the desired function. Easy to use: Simply insert the probe into the soil approximately 7.5 to 12.5 cm (the probe depth should be about half of the instrument's total length) to get accurate readings, helping you maintain the best possible soil conditions in your garden or lawn! Remove the probe from the soil after each use and wipe it clean. LCD screen: The large LCD screen easily displays various readings, and the green backlight allows for clear reading in dark environments. Multiple uses: Suitable for both indoor and outdoor use. This soil pH meter can be used for gardening, agriculture, potted plants, succulents, etc. Note: This product should be used in moderately moist soil. Avoid direct contact with water!