The Johnson 10" Magnetic Electronic Digital Torpedo Level features a large liquid crystal display (LCD) that has a bright backlight. It has a sound button that provides an audible indicator of level and plumb and a hold button that locks the measurement displayed on the LCD so the reading can be recorded. It comes with a reference function that makes any slope “0.0”
This Johnson digital torpedo level can be read in degrees, percent, and fraction of an inch/feet. It can be field calibrated and has automatic digit inversion for overhead measurements. It also comes with two vials that read plumb and level with Surroundview feature that reflects ambient light for easy reading.
The Johnson magnetic electronic torpedo level has a ten-inch solid aluminum frame with rare earth magnets that attach the level to any ferrous metal surface. Its V-groove frame fits on pipe and conduit. This torpedo level comes with a limited lifetime warranty.