EXTECH SDL400 Light/Lux Meter / Datalogger to SD Card

EXTECH SDL400 Light/Lux Meter Features: Wide range to 10,000Fc or 100kLux Cosine and color-corrected measurements Utilizes precision silicon photo diode and spectral response filter Datalogger date/time stamps and stores readings on an SD card in Excel ® format for easy transfer to a PC Offset adjustment used for zero function to make relative measurements Adjustable data sampling rate: 1 to 3600 seconds Stores 99 readings manually and 20M readings via 2G SD card Type K/J Thermocouple input for high temperature measurements Large backlit LCD display Record/Recall MIN, MAX readings Data Hold plus Auto power off with disable function Built-in PC interface Complete with 6 x AA batteries, SD card, hard carrying case and light sensor with protective cover Additional Features Offset adjustment can be used for zero function or to make relative measurements. Adjustable data sampling rate from 1 to 3600 seconds (1 hour) and can store 99 readings manually and 20 million readings via 2G SD card. Type K/J Thermocouple input for high temperature measurements. Large backlit LCD display. Record/Recall MIN, MAX, Data Hold and Auto power off. Built-in PC interface. What Is a Light Meter? A light meter measures the amount of visible light, also known as illumination, in a given area. For many meter brands, including Extech, illumination is expressed in units of measure called Lux (for metric) and foot-candles (used in the US). To use an Extech light meter, the sensor is placed on a tabletop or other surface in the area to be measured and the light level reading is indicated on the meter’s display. There are many different types of lighting that can be measured. the most common are: sodium, tungsten, mercury, and fluorescent. The following list shows common applications for each lighting type. Sodium lighting: Highway, parking lots, security measurements Tungsten lighting: Sunlight and incandescent lighting measurements Mercury lighting: Highways, parking lots, stadiums Fluorescent lighting: Indoor lighting for workstations and store display areas EXTECH SDL400 Light/Lux Meter Specifications: Technical Data Range Resolution Basic Accuracy Fc Range: 200, 2000, 10kFc 0.1Fc ±4%rdg Lux Range: 2000, 20k, 100kLux 1Lux ±4%rdg Type K Temperature: -148 to 2372°F (-100 to 1300°C) 0.1° ±(0.4% 1.8°F/1°C) Type J Temperature: -148 to 2192°F (-100 to 1200°C) 0.1° ±(0.4% 1.8°F/1°C) Memory: 20M data records using 2G SD card Dimensions: 7.2 x 2.9 x 1.9″ (182 x 73 x 47.5mm) Weight: 16.2oz (475g)