With a V-grooveThe digital inclinometer has a magnetic base with a V-groove, so you can quickly and easily attach saw tables, band saws, metal bars and even round pipes .Unit of measurement ( degrees /% / mm / m / IN / FT) VA LCD DisplayThe digital inclinometer makes it easier and clearer to read the values even at night because the #39;improved LCD display works with new black and white characters. Additionally, the digital inclinometer with low battery indicates. Auto ReversingHigh precision level bubble vial on top, for leveling work without battery. The display has been inverted automatically when the head is down. Zero and Hold Functions allow precise measurement of absolute AND relative angles, bevels and slopes on every surface imaginable. Product name: horizontal digital display box Product item: DL1908 Unit of measurement: , %, mm/ m, with magnet on the IN/FT base to ensure it is attached to the iron surface Accuracy: 0.1 near horizontal and from vertical, 0.2 to other angles Material: PC/ABS alloy material Case resolution: 0.1 Horizontal measuring range: 0 ~ 360 (4*908) VA screen, black background, white digital display, for clear vision. Self-checking precision LCD automatic rewind reading size: 62*32*68mm Bare metal weight: 102g Delivery quantity : 1 piece