footcandle 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 ?
Houghton recommends comparing the light levels in each space to the code for your city, county or state: "Look at the minimum of light you have to have, then walk around the parking lot, sidewalk and sides of the building with a footcandle meter to see if you're within the codes in regards to minimum light.
Charged with the power to change one thing about the industry during their reign, the designers, manufacturers and academics called for streamlined manufacturing, better education, and bans on product substitutions and footcandle meters.
Sales reps for most reputable lighting manufacturers have footcandle meters, and so do most distributors and wholesalers.