â·ÃÊͺ¶ÒÁÃÒ¤Ò LED Light Meter with All Visible Light Source LUX/FC, with corrected LED white Light measurement(Model No.: TM- 201L) LED Light (LUX/FC) Meter Model TM-201L DISPLAY 3½ digits LCD with maximum reading 2000. Overload indication : “OL” . Low battery indication FUNCTIONS According to JISC1609:1993 and CNS 5119 general A class specifications. Spectral responce close to CIE luminous spectral efficiency. Measuring intensities of illumination in Lux or Foot-candle. Silicon photodiode and filter. Measuring lights source include all visible light sources. Length of wire for light sensor: approximately 1.5M. Cosine angular corrected. Many applications include: warehouses, factories, office buildings,restaurants, schools, library, hospitals, photographic,video, parking garages, museums, art galleries, stadiums, building security. Specifications Display 3½ digits, 2000 readings Data hold Yes Max/Min hold Yes Zero adjustment Yes Sensor Silicon photo diode and filter Measuring range 200, 2000, 20000, 200000 Lux 20, 200, 2000, 20000 Foot-candle Accuracy 3% (Calibrated to standard incandescent lamp 2856º K and corrected LED day white light) 8% (other visible light source ) Angle deviation from cosine chararcteristics 30º 60º 80º Meter size (LxWxH) 130x55x38mm Sensor size (LxWxH) 80x55x25 Weight (including 9V battery) 250g Light meter Lux meter TENMARS TM-201L à¤Ã×èͧÇÑ´¤ÇÒÁà¢éÁáʧ à¤Ã×èͧÇÑ´áʧ