Resolution 0.1?(=.021in/ft)
Accuracy: at 0? and 90?: ?0.1?, others: ?0.2?
Used as level and slope meter
Aluminum frame
Magnetic bottom
The display flips over when the bottom faces up
Buttons: ON/OFF, ZERO, HOLD, absolute and incremental measurement

3M 46394, Dual Airline Back-Mounted Adapter Kit SA-2000, 7000126161, 1 EA/Case
Insize 4809, U.S. STAND SHEET METAL GAGE, 0-36(.3125~.0070"), 6928640330162 