Levels are instruments that are used to determine the true horizontal or vertical plane of a surface.
Spirit levels have a liquid-filled, bowed tube (also called a vial) with a bubble that moves when slight adjustments are made to the level. When the bubble settles between marked points on the vial, it indicates that a surface is horizontally or vertically straight. Levels can have one or more vials to determine the horizontal plane, the vertical plane, or various points between.
The post level is a 5.3" x 7.4" spirit levelwith two level vials and one plumb vial with a sensitivity of 0.001"/inch for simultaneously determining the horizontal and vertical plane of posts, pipes, and beams.
Injection-molded Acrylic Vials
The vials are made of injection-molded acrylic to resist breakage. Two level and one plumb.
Adjustable Measuring Angle
The level folds closed, opens flat, and locks every 15° to accommodate different pipe, post, and beam sizes.
Free Your Hands
It has four magnets for attaching to metal surfaces and an elastic band for securing to non-metal surfaces, and is made of ABS for impact resistance. Levels are used in the building trades, engineering, surveying, and metalworking, among other applications.