You can measure soil fertility It ' s-helpful for you to plant flowers, plants-and make grow and-strong A portable needle-inserted thermometer for measuring fertilizer-temperature The applicable fields-are agriculture, gardening, family and so-on Also suitable for various planting-scenes, such as,, gardening, compost, trees, decorative landscape Mechanical pointer-type, clear-dial, scale display, no battery, stainless-steel probe, strong resistance, easy to clean Plug-and read, it ' s-very easy to use by inserting probes 3-5 inches into the soil, toggle-the button to-moisture, or pH-position, wait about 10 seconds for a-much more accurate and stable reading Material-food grade stainless-steel, safe and High accuracy, fast readings, Manufacturer: FROMCEO