The Triplett Model LT80-NIST LED Light Meter measures light intensity and verify OSHA safety requirements from white LED light sources up to 40k Foot candles (400k Lux. ) now being incorporated in factories, parking lots, schools, offices, transportation lines, warehouses, hospitals, schools, and many other environments. It will also measure light from fluorescent, metal halide, high‐ pressure sodium, and incandescent sources. It features a 9,999 count LCD display, silicon photodiode sensor with spectral response filter, minimum/maximum/Avg function that recalls the highest, lowest and average reading, Data Hold to freeze the reading on the display for easy viewing, and auto power off (with disable) to conserve battery life.