Our cal-SPOT 401 is a Calibrated Spot Measuring Brightness Meter, autoranging from 0.1 to 400,000 cd/m**2, has a 1 degree measuring field, and a 12 degree FOV. Using a high stability silicon photodiode sensor, and no magnification, it provides standard human eye response, and can be used with both eyes open. Comes complete with instructions, battery, carrying case and calibration certificate.
