Compact and rugged design features large display. Multiple wide measuring ranges: Model EA30 40,000Fc in 4 ranges and 400,000Lux in 5 Ranges. Model EA31 20,000Fc in 4 ranges and 20,000Lux in 4 ranges. Data hold freezes reading on display. MIN/MAX readings. Zero function. Cosine and color corrected measurements. Low battery and overrange indication. Auto power off to save battery life. Utilizes precision silicon photodiode sensor with 3 ft. coiled cable for easy storage. Complete with built-in stand, remote sensor with protective cover, protective rubber holster, and 6 AAA batteries. Additional features for Model EA30: Large display with bargraph. Peak hold captures short light pulses to 100 Sec. Relative function for zero or difference from reference value.