High intensity light measurements up to 40,000Fc/400,000Lux. The Extech EA30 light meter is capable of measuring from 40 to 400,000Lux in 5 ranges with an accuracy of 3% of reading. The handheld Extech EA30 light meter, weighing only 8.3 oz., features rugged construction including a precision silicon photodiode sensor with 3 ft. coiled cable. The Extech EA30 light meter includes a large display for easy viewing and high resolution for low level measurements. Freeze your reading using the Extech EA30 light meter's data hold function, and easily record measurements using the bargraph. The peak hold is able to capture short light pulses as fast as 100uSec. The Extech EA30 light meter comes complete with built-in stand, remote sensor with protective cover, rubber holster, and 6 AAA batteries.