exposure meter(n = noun.artifact) light meter, photometer - photographic equipment that measures the intensity of light;
is a kind of photographic equipment
has particulars: cytophotometer

candle meter, common meter, coulomb meter, cubic meter, electric meter, exposure, exposure therapy, gas meter, gravity meter, heroic meter, indecent exposure, light meter, meter, meter maid, meter reading, parking meter, phase meter, postage meter, power meter, public exposure, risk of exposure, square meter, time exposure, torsion meter, water meter, wind exposure