Ambient Weather WS-01 Intelligent Color Changing Temperature Night Light with Ambient Backlight The colorful WS-01 night light featuring ambient backlighting is easy to read from any Distance The bright LED back light color changes with the temperature, providing instant feedback on whether a room is too hot or too cold Dusk to Dawn sensor with manual override turns on the back light only when needed Includes an optional temperature calibration feature for spot-on accuracy Perfect for identifying hot and cold spots in your home or facility at a glance