1. Four-in-one Soil Tester - A multi-functional soil pH meter that can accurately measure soil pH, humidity, temperature, and light intensity. It is an ideal soil pH meter for indoor plants, gardens, lawns, and farms. 2. Large Backlit LCD Screen - This soil tester is equipped with a large LCD screen that can easily display various readings. This allows you to read the parameters in a dark environment. 3. High-Sensitivity Probe - The aluminum alloy soil probe of the intelligent soil pH tester has high sensitivity, enabling faster and more accurate detection of soil conditions. 4. Easy to Use - Simply insert the sensor probe into the soil to a depth of about 3 - 4 inches, and you can obtain measurement data within 5 - 10 seconds. If necessary, switch to PH / TEMP. Both scales are in °C / °F. The product will automatically turn off after standing for 5 minutes, or you can manually turn it off by pressing the °C / °F button. Note: Before testing the pH or temperature, the soil must be compacted; otherwise, the probe will not be able to detect the soil. It is recommended to measure the soil temperature half an hour after watering. 5. Battery Not Included - This product does not come with dry batteries.