Light meter Lux Meters เครื่องวัดแสง > LUX/FC Multi-LED Light Meter TM-209M เครื่องวัดแสง TM-209M LUX/FC Multi-LED Light Meter Description According to JISC 1609 : 1993 and CNS 5119 general A class specifications Spectral response close to CIE Luminous spectral efficiency Measuring intensities of illumination in Lux or Foot-candle Sensor : Silicon photo diode and filter Cosine angular corrected Data hold 99 manual records Specification L0 - standard light source A L1 - LED white day light L2 - LED red light L3 - LED amber (yellow) light L4 - LED green light L5 - LED blue light L6 - LED purple light L7 ∼ L9 (default standard light source A) Light Source Selecting Tungsten/Daylight, Fluorescent, 0~9 select rating Measuring range 40, 400, 4,000, 40,000, 400,000 Lux, 40, 400, 4,000, 40,000, Foot-candle Accuracy +/-3% (Calibrated to standard incandescent lamp 2856º K) and corrected LED day while-light spectrum. +/-6% (other visible light source) Meter size (LxWxH) 130x55x38mm Sensor size (LxWxH) 80x55x25mm Weight (including battery) 250g Light meter Lux meter TENMARS TM-209M เครื่องวัดแสง