Accurately measure light in foot-candles and lux with the NIST-certified FLIR Extech 407026 Heavy Duty Light Meter, which features a microprocessor-assisted precision photodiode with a color correction filter that measures light levels up to 5,000 fc/50,000 lux. Accurate within 4%, the meter features four lighting modes - tungsten/daylight, fluorescent, sodium, and mercury - along with a built-in RS-232 serial interface for use with a Microsoft Windows OS computer. The meter has record and recall options for MIN, MAX, and AVG readings, along with data hold and auto shut-off capabilities. A 9V battery, a protective case, and a holster and stand are included.