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The testo 540 lux meter is a quick and easy-to-use entry level model designed for measuring lighting conditions in the workplace.

This ISO calibration certificate certifies that your measuring instrument or probe is calibrated. Calibration is carried out according to the ISO standard.

ISO luminous intensity calibration certificate - with 5 measuring points

ISO calibration certificate/light

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ISO luminous intensity calibration certificate - with 5 measuring points

ISO luminous intensity calibration certificate - with 5 measuring points

General technical data

General technical data