ITEM NAME:High Precise Digital Illumination Meter Light Intensity Measure Instrument #gib Store Home Promotion Hot Item Add to Fav.Light illuminance unit, Lux: lex, Fc: ulnar candlelight. Unit: Lux: lux, Fc: ulnar candlelight. When used, the light detector should be kept clean. The reference standard of the light source test is at the top of the light sphere.
