Features Length: 48″ Yields precise slope and angle measurements for metal fabricators, commercial carpenters, plumbers and more Electronic measuring technology with 2 digital displays and and audible inclination guide Fast, accurate readings Dust- and Water-proof rated at IP65 Dual screens (Front & Top) provide easy viewing from any angle Electronic displays illuminate for better viewing in low light conditions Instant conversion of measurements to any scale e.g. rise & run to degrees, degrees to percent, etc. Audible tones allow sight-free use Easy-to-use, one button calibration 1 – Horizontal vial 2 – Vertical vials Comes with removable, shock-absorbing end caps featuring anti-slip wall grips Replacement end caps (Catalog # 20070) sold separately Runs on two AA batteries Includes carrying case Weight: 2.8 lbs 5 Display Modes Degrees in 1 or 2 decimal points Percent Feet & inches (Rise/Run) in decimal Feet & inches in fractions Millimeter/Meter (mm/m)