Extech Easyview Light Meter Calibrations are a brand commonly serviced in ATS labs. Light meters play an active role in many industries, some of which include cinematography, photography, OSHA compliance, photosensitive materials, process controls, clean-room standards, quality assurance, security, and regulatory requirements. Being involved in so many industries, light meters’ calibration is crucial for obtaining accurate readings. The tool’s ability to perform well must meet requirements established by the National Institute of Standards & Technology (NIST).