The Extech 407026 Heavy Duty Light Meter is a versatile and reliable device designed for accurate light intensity measurement. This meter is equipped with advanced features to ensure enhanced accuracy and convenience in a variety of lighting applications.The Extech 407026 features four lighting type settings for increased accuracy: Tungsten/Daylight, Fluorescent, Sodium, and Mercury. By selecting the appropriate setting, you can ensure precise measurements that are tailored to the specific lighting conditions you are working with. This feature is particularly useful for professionals in photography, cinematography, lighting design, and other industries where accurate light measurement is critical.The meter includes various additional features to enhance functionality. The Data Hold function allows you to freeze the displayed reading for easy recording or note-taking. The Min/Max/Average function enables you to track and analyze the minimum, maximum, and average light intensity over a period of time, providing valuable insights into light level fluctuations. The Auto Power Off feature helps conserve battery life by automatically turning off the meter after a period of inactivity.With its % reading capability, the Extech 407026 allows you to measure the differential light intensity from a reference point, providing a comparison of light levels for accurate analysis and assessment.The meter is equipped with a built-in RS-232 interface, allowing for easy connectivity to external devices such as computers. With optional Data Acquisition Software and Data Logger, you can expand the capabilities of the meter by capturing, analyzing, and storing light intensity data for further analysis and documentation.The Extech 407026 Heavy Duty Light Meter is built to withstand demanding environments and offers a user-friendly design. Its rugged construction ensures durability and reliability, making it suitable for use in various industries and applications.