Tenmars TM-720 LUX/FC Lux Meter Light Tester Illuminometer  Product Description: - According to JISC1609 : 1993 and CNS 5119 general A class specifications. - Spectral response close to CIE luminous spectral efficiency. - Measuring the intensities of illumination displays in unit of Lux or Foot-candle. - Silicon photo diode and filter. - Measuring light source include all visible light source. - Cosine angular corrected. - Auto power off and disable function. - Data hold, Max/Min/AVG hold. - Real Zero function. - Auto ranging. Application: - Warehouses, factories, office buildings, restaurants, schools, library, hospitals, photographic, video, parking garages, museums, art galleries, stadiums, building security. Specification:       TM-720 Light Meter            Light Source Selecting    Tungsten/Daylight, Fluorescent, 0~9 select rating        Measuring range    40,400,4,000,40,000,400,000Lux        40,400,4,000,40,000Foot-candel            Accuracy    3%3Lux(0~500Lux), 3%(up 501 Lux) (Calibrated to standard incandescent lamp 2856º K)        8% (other visible light source)            Dimension    133mm x48mm x23mm (LxWxH)        Power    2 batteries 1.5V AAA(not included package)        Weight (including battery)    80g(Not include packaged)