Testo 540 Lux Meter 0 to 99999 Lux

The Testo 540 Lux Meter: compact, easy-to-use, precise

The Testo 540 light meters are a compact entry-level model designed for spot checks in the workplace, shops, and offices. The light sensor is modeled on the spectral sensitivity of the human eye and is ideal for measuring lighting conditions in various workplaces.

The compact, easy-to-use meter has a number of useful functions and features including a large, easy-to-read display, min/max values that can be shown at the touch of a button, a hold function that allows you to freeze the last reading, and a protective cap for safe storage.