Compact and portable, this light meter measures illumination up to 20,000 lux with 0.1-lux resolution shown on an easy-to-read 3.5-digit LCD. Sensor is cosine and color-corrected for quick and accurate readings and reaches up to 54" from the meter. Meter display features sensor overload and low-battery indicators and lets you hold the displayed reading for easy recording. Easily calibrated with external zero adjustment.