M-D Aluminum and Abs Plastic 2 Vial 92325

Displays in degrees, percent, and inches/feetIndestructible block acrylic vialsCustom liquid sensor made in the USA500 hour battery life (9-volt battery included)High visibility LCD display, display image flips when upside downListen and level audio tone at level and plumbHold button freezes displayHigh precision digital display with amazing accuracy within 1/10 of a degreeTool quickly identifies any angle in 3 different modes: degrees, % slope and pitch