Lightweight and Portable: Optimized construction design, small and compact, light weight and portable, easy to carry and easy to use. Large LCD Display: Adopts 3 1/2-digit LCD display, with 18mm word height, easy to read, clear display and does not hurt your eyes. And it can also be clearly displayed under sunlight and dark environment. Multifunctional Design: High resolution, with measuring ranges of 1-50,000 lx, with reading lock and low power indication function. High Capacity Lithium Battery: Powered by built-in 6F22 9V battery, with long endurance, and the battery is replaceable. Wide Applications: The illuminance meter is widely used in indoor and outdoor illuminations, such as building illumination, road illumination, plant growth illumination and other fields.