Backlighttable saw angle guage can be switched on and off.Taking readings in dark spaces on this digital angle guide is so easy now.Self-inverting display in bevel box makes for easy slope readings when digital gauge for table saw tool is upside down. Versatile - Digital level angle finder measuring absolute and relative angles in degrees or tilt %. Digital level angle gauge is surrounded by an aluminum frame,which makes digital degree gauge more robust and has a longer service life.Sturdy and durablealuminum frame, compact and lightweight, easy to carry and use this magnetic digital angle finder tool. Convenient - Digital level angle finder tool with automatic powering off and hold function. Low battery warning supplied in the angle cube degree tool. Digital angle gauge and level has a strong magnet on the bottom side.It can be adsorbed on the surfacesuch as table saws,pipes,saw blades and other ferrous surface. construction protractors digital angle gauge can be used under different temperature conditions, from 32F to 122F (0C to 50C) and in an humid environment, being certified to IP54 dust and water resistant standard. I believe this table saw angle gaugedigital is a best gift for dads Surprise him with this beautifully packaged tool.