Spirit level with illuminated or luminous bubble lens - has luminous measurement liquid or integral light source and batteries for good legibility under all conditions

摘要

The spirit level's viewing lens can be read well and substantially without errors under all operating conditions. The bubble and scale arrangement is luminous or able to be illuminated. The read-out arrangement is independent of the mains supply at the mounting point, i.e. it is illuminated by fluorescence of the measurement liquid or a light source with batteries integrated into the spirit level body. USE/ADVANTAGE - For construction and installation industires. contains one or more light sources for good legibility under all conditions.