illumination meter

illumination meter,

Brit. illumination photometer An instrument for measuring the illumination on a surface; usually consists of barrier-layer cells connected to a meter calibrated directly in a set of illumination units.
References in periodicals archive ?
Status of school illumination was examined using the digital illumination meter (TES-1330) authorized by the Bureau of District School Health in Korea.
Five school nurses examined illumination status of primary schools and kindergartens using the TES-1330 digital illumination meter between 10 - 11 am on sunny days and on cloudy days.