BeiShiDaGuangDianYiQi ST-85 Luminometer

Beijing Normal University Optoelectronic Instrument ST-85 luminometer is an automatic range digital luminometer, using high-precision digital chip, ST-85 can be used to measure incandescent lamps, fluorescent lamps, high Voltage sodium lamps, metal halide lamps or LED Light sources such as visible Illumrination degree.