Testo 540 Pocket Light Meter / Lux Meter

Pocket-sized and easy to use, the Testo 540 is excellent for checking light levels in offices and other similar applications.

Specially adapted to the sensitivity of the human eye, the Testo 540 quantifies the level of light in an area in lux. To use, simply hold the integrated sensor as close as possible to a light source and the 540 will then gain a reading.

This tester also includes additional functionality such as data hold (temporarily stores the last value taken on the screen) and a MAX/MIN function which calculates the maximum and minimum value taken over a period of time.

Test 540 Pocket Light Meter Key Features:

Pocket-sized, portable design
Specially adapter to the spectral sensitivity of human eyes
Measurement range of 0 to 99,999 lux
High accuracy and excellent resolution
Measurement rate once every 0.5 seconds
Data hold function - temporarily stores a value taken on the screen
MAX/MIN measurement mode - calculates the maximum and minimum values taken over a period of time
Backlight for use in poor lighting conditions

What's Included:

Testo 540 Pocket Light Meter
Protective Cap
Batteries
Calibration Protocol