Enalone

Testo 540 Information The testo 540 is a compact, entry-level light meter that is designed for carrying out spot checks in the workplace, shops, and offices. It is ideal for measuring lighting conditions in a variety of different workplaces, as the light sensor is modeled on the spectral sensitivity of the human eye. The testo 540 has a number of useful functions and features, including: A large, easy-to-read display Min/max values which can be shown at the touch of a button A hold function that allows you to freeze the last reading A protective cap for safe storage The testo 540 can measure both artificial and natural light, and provides you with a quick and easy means of measuring lighting conditions in the workplace. It is accurate to ±3 Lux or 3% and has a resolution of 1 to 10 Lux.