This 4-in-1 soil tester quickly measures moisture, pH, temperature and sunlight to help care for plants-use these metrics to know when to water. It has a large LCD with white backlight for easy reading day/night, runs on 4 AAA 1.5V batteries (not included) and alerts for low power. With 2024's latest probe tech, it delivers fast, accurate soil pH, moisture and temperature readings. Its light sensor analyzes intensity, helping you water timely, control pH/acidity and check if plants get enough light for scientific cultivation. Easy to use: Insert the probe 4 inches (10cm) into soil, wait 10s for accurate data. Note: Do not test liquids; avoid dry/hard soil (water test area and wait 10min first to prevent damage). For pH/moisture, take 5+ readings and average for final results. The screen uses visual design (clear values + simple graphics) so even novice growers understand soil conditions. Its 45° rotating head (bends 0°-45°) lets you view the screen without bending over.