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

Insize 6140, DEPTH BASE ATTACHMENT, suitable for calipers with beam width (w) .630", 6928640303579 