401027: Pocket-Size Foot Candle Light Meter Measures up to 2000Fc for basic lighting applications Features: Easy to operate Foot candle light meter with 2 ranges Convenient pocket size design Overrange indication Specifications: General Specifications Circuit Custom LSI microprocessor based design Display 0.5" (13mm) 3-1/2 digit (1999 count) LCD display Sensor Photo-diode with color correction filter (meets CIE regulations) Out of range indication '1 ' is displayed Sampling time Approx. 0.4 seconds Power Supply 9V battery Power consumption Approx. 2.7mA Operating temperature 32°F to 122°F (0°C to 50°C) Operating Humidity < 80% RH Weight 0.43 lb. (195g) Dimensions Meter 5.2x2.8x1" (131x70x25mm) Probe 3.2x2.2x0.3" (82x55x7mm) Accessories Probe and 9V battery 401027 Extech Light meter Lux meter à¤Ã×èͧÇÑ´¤ÇÒÁà¢éÁáʧ à¤Ã×èͧÇÑ´áʧ