Light/Lux Meter à¤Ã×èͧÇÑ´áʧ Distance Meter à¤Ã×èͧÇÑ´ÃÐÂÐ Clamp Meter á¤ÅÁ»ìÁÔàµÍÃì Lighting Retrofit Kit with Power Clamp Meter LRK15 à¤Ã×èͧÇÑ´áʧ+à¤Ã×èͧÇÑ´ÃÐÂÐ+á¤ÅÁ»ìÁÔàµÍÃì LRK15 Lighting Retrofit Kit with Power Clamp Meter Essential Tools for Energy Saving Consultants Features : Designed for professionals who routinely audit existing and replacement lighting systems for energy efficiency and lighting performance Kit includes: LT300 - Light meter with digital and analog display of light in Foot-candles or Lux DT200 - Compact laser distance meter with area/volume calculation functions 380940 - 400A True RMS AC/DC power clamp meter Supplied in a soft carrying case that provides protection and organization for the meters whenever they are needed Extech LT300 Light Detector features Wide range of measurements up to 200kLux or 20,000 Foot Candles High resolution of 0.01 Lux/Fc 5% accuracy Relative mode indicates change in light levels Peak mode captures highest reading Uses precision photo diode and colour correction filter Min/Max and Data Hold Backlit LCD display with bargraph Extech DT200 Laser Distance Meter features Measurement range: 2" to 115' (0.05 to 35m) Accuracy (up to 32'/10m): ±0.08” (±2mm) Resolution: 0.001" (0.001m) Length add calculation: 99'11" (99.99m) Area calculation: 999.99 sq. ft. (999.99m2) Volume calculation: 999.99 cu. ft. (999.99m3) Laser power off: after 30 seconds Auto power off: after 3 minutes Power supply: 2 AAA batteries Dimensions: 4.5 x 1.9 x 1.1" (115 x 48 x 28mm) Weight: 5.3oz (150g) Extech 380940 400A True RMS AC/DC Watt Clamp-on features 400A AC/DC & watt clamp-on Measure watts, current and voltage True RMS AC Voltage and Current 0.9" (23mm) jaw opening Large 4000 count LCD display Fast 40 segment analog bargraph Data Hold, Max/Min recall, Auto Zero (DC current), plus low battery indication Frequency to 10kHz Auto power off Clamp Meter Distance Meter Extech Light meter LRK15 à¤Ã×èͧÇÑ´ÃÐÂÐ à¤Ã×èͧÇÑ´áʧ á¤ÅÁ»ìÁÔàµÍÃì