Unraveling Testo 540: From Full Specifications To Potential Issues
Testo 540 Information The testo 540 is a compact, easy-to-use light meter that is ideal for measuring lighting conditions in a variety of different workplaces. The meter has a large, easy-to-read display and a number of useful functions and features, including min/max values, a hold function, and a protective cap for safe storage. Introduction The testo 540 is a light meter that can be used to measure both artificial and natural light. It has a measuring range of 0 to 99999 lux and an accuracy of ±3 lux or 3%. The meter also has a resolution of 1 to 10 lux.