This temperature gauge comes with a waterproof metal case and an acrylic dial. The metal case won't rust, allowing it to adapt well to the four seasons and withstand any kind of weather. It has a wide temperature measurement range, from -40 to 60 Celsius, which is -40 to 140 Fahrenheit, and it can display both Celsius and Fahrenheit. The light - colored background makes the numbers easy to read from a distance, and it also has an aesthetically pleasing appearance. There's no need for a battery as it has a built - in temperature gauge. It can automatically sense and accurately measure the temperature within 3 hours. With a detachable design, it can be hung either outdoors or indoors, like in the garden, patio, lawn, or any other place you prefer.