Vigoro Moisture Light And Ph Meter 4-in-1 soil tester meter probe adopts upgraded detection technology, which can accurately measure sunlight, humidity, PH value, temperature, and display the results more quickly, scientifically, and accurately(measuring sunlight: LOW- to HGH +; measuring humidity: DRY + to WET +; PH measuring range: 3.5-9.0; soil temperature measuring range: -9℃~+50℃ /16℉~122℉). The large LCD screen and the green backlight make it easy to read even in the dark. There is also a low battery indicator and ℃/℉ two display modes can be switched. Besides, the soil tester meter is very professional and practical, and it is lightweight and easy to carry around. Soil tester meter can be used indoors and outdoors, and it is an ideal soil test tool for homes, gardens, lawns, and agricultural plants and the best assistant for gardeners. In addition, the operation of the soil tester mete is also very simple, just insert the soil tester meter into the soil and select the setting to be measured. In addition, the soil tester meter has a warm reminder function, when using a soil tester meter, please gently push into the soil to avoid damage to the probe; if the soil is dry or fertile, the correct pH cannot be measured, please sprinkle some water within half an hour and measure again.
It measure Moisture, light and Soil pH to prevent over and Under Watering. It helps to make planting easier. And it use solar as power.