Digital Light Meter Luminous Flux Meter With Competive TES-1330A. Spectral Sensitivity close to CIE photo pic Curve. Cosine Angular corrected Digital Light Meter Model TES-1330A Specification: Display 3 1/2 digit LCD Measuring Range 20/200/2000/20000 Lux 20000 lux-reading x 10; 200000 lux-reading x 100 Overrange Display Hightest digit of (1) is displayed Resolution 0.01 Lux Accuracy +/- 3% rdg +/- 0.5% f.s.(<10,000 lux) +/- 4% rdg +/- 10dgts (>10,000 lux) (calibrated to standard incandescent lamp, 2856 K) Repeatability ±2% Temperature Characteristics ±0.1% Measuring Rate Approx. 2 times/sec. Recorder Output DC 2V/f.s. (full scale) Operating Temperature & Humidity 0 ° to 40 (32 to 104 ) < 70% R.H. Power Source one 9V battery Dimensions 100mm(L) x 60mm(W) x 27mm(H) Dimension 135mm(L) x 72mm(W) x 33mm(H) Weight 250g Accessories Carrying case, 9V battery & Instruction Manual Light meter Lux meter TES TES-1330A à¤Ã×èͧÇÑ´¤ÇÒÁà¢éÁáʧ à¤Ã×èͧÇÑ´áʧ