Johnson's 21" digital level and angle locator with dot laser is a versatile tool that combines a digital level and digital protractor into one convenient angle measurement tool. Its Powerful GripTight™ rare earth magnets hold to ferrous metal surfaces, and its backlight display ensures the measurements are easy to read even in dimly lit conditions. Measurements even invert automatically when you are taking overhead measurements. The level has audible level and plumb indicators for ease of use, and calibrating the tool is quick and easy at the press of a button. The level comes with a soft-sided pouch to keep your tool clean and safe when not in use.