Directly indicating inclinometer spirit level - has tubular loop of oval form half filled with scale half visible

The inclination spirit level with a direct display in degrees may be used to set objects, e.g. pipes, for defined inclinations or as a conventional level for horizontal and vertical positioning. It is a universal device suitable for all level measurements. Its construction is simple and its price low enough to make it suitable for private ownership. An oval double level is only half filled with fluid and has only its upper half visible. It consists of a closed tubular loop whose visible half is graduated from 0 to 90 to 0 degrees. The fluid level at either end is exactly on the two 0 marks when the level is horizontal. When it is inclined fluid moves up one side of the upper tube and its position read on the scale corresp. to the inclination angle.