à¤Ã×èͧÁ×ÍÇÔ·ÂÒÈÒʵÃì ÍØ»¡Ã³ìÇÔ·ÂÒÈÒʵÃì Light meter Lux Meters à¤Ã×èͧÇÑ´áʧ > Heavy Duty Light Meter à¤Ã×èͧÇÑ´áʧ DT-8809A Descriptions for DT-8809A Professional Light Meter DT-8809A Professional Light Meters 8809A light meter provides accurate display light level in terms of Foot Candles (FC) or LUX over wide range. Just turning the Function Switch to select the "lux" scale and setting the range to desired range, then removing the photo detector to light source in a horizontal position and reading the illuminance norminal from the LCD display. When the measurement is completed,replace the photo detector from the light source. Features: 8809A LCD display counts 4000 Auto Ranging * Analog bargraph/segments */41-segments Peak Hold * Relative mode * Max and Data Hold * Auto Power Off * Low battery indication * User selectable FC/Lux * Specifications: 8809A Max Range 400,000Lux Accuracy ±5%±10d(<10,000Lux) ±10%±10d(>10,000Lux) Max Resolution 0.1Lux/0.01Fc Measuring rate 1.5 times/second Photo Detector 115mm x 60mm x 27mm Accessories: 9V battery, Photo Detector and USB cable (8809A), software(8809A), Carrying case and Gift box. à¤Ã×èͧÁ×ÍÇÔ·ÂÒÈÒʵÃì ÍØ»¡Ã³ìÇÔ·ÂÒÈÒʵÃì Light meter Lux Meters à¤Ã×èͧÇÑ´áʧ > Heavy Duty Light Meter à¤Ã×èͧÇÑ´áʧ DT-8809A