2.7-inch Mini Level Box Digital Level Gauge Angle Finder Inclinometer with Leveling Bubble & V-groove Magnetic Base

Features:
4 Angles Unit Switching: measures angle in (degrees), % (percent), mm/m IN/FT.
VA Display: VA screen with black background white digital display for clear view. Auto-reverse reading of VA display.
V-Groove Built-in Magnets on the Base: V-Groove at the measurement base for easy attach to round pipes for accurate measuring. And the powerful magnet to secure the attachment to iron or metal surface.
Horizontal Level Bubble: help judge the tilt direction of the product, for leveling work without battery.
Auto-off Low Battery Indicate: after about 3 minutes of non-using the equipment, it will switch off automatically. Powered by 2pcs 1.5V AAA batteries, and has low battery indicator.
Data Hold: hold-function to freeze the measurement, thus you can move the device to read the display.
Other Features: set zero function at any angle, self checking accuracy, self calibration, etc.