Easy to test and identify, you just need to insert it into the soil and then see the color of the lamp to identify the soil moisture. Com a tampa da tard, Protects efetivamente slow da poeira, oferece suporte ao foco manual e correo de distoro trapezoidal. You do not need to remove this tester, you can plug it in the ground for a long time for continuous testing. The whole body is splash proof: the black part can be directly inserted into water, but the white host part cannot be soaked in water. Tool Smart Soil Moisture Meter, Soil Moisture Test Tool, Moisture Test Tool, Garden Tool, Indoor Moisture Test Tool Features: / p Material: ABS White color Operating voltage: 3 V Working current: 10uA Battery: 1 * button battery, 3V (not included) Rated power: 0.03 W Measuring range: 5% Red light: water shortage. Green light: products to hydrate Blue light: too much water p Product model: WN1803 Item size: 131 * 25.1 * 10.9mm / 5.2 * 1.0 * 0.4inch Packing weight: 30g / 1.1oz Packing size: 136 * 28 * 15mm / 5.4 * 1.1 * 0.6in Packing list: 1 * soil moisture meter Note: this does not not include other things, the color is based on the first picture, and other pictures only show the effect Due to the differences between different monitors, the picture may not reflect the color actual of the item. Due to manual measurement. Please allow deviation. Thank you!