â·ÃÊͺ¶ÒÁÃÒ¤Ò Lux meter Light meter à¤Ã×èͧÇÑ´áʧ Datalogging Light Meter à¤Ã×èͧÇÑ´áʧ ºÑ¹·Ö¡¢éÍÁÙÅ SDL400: Light Meter/Datalogger SDL400: Light Meter/Datalogger Records data on an SD card in Excel® format Features: Wide range to 10,000Fc or 100kLux Cosine and color-corrected measurements Utilizes precision silicon photo diode and spectral response filter Offset adjustment used for zero function to make relative measurements Adjustable data sampling rate 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, Data Hold and Auto power off Built-in PC interface Complete with 6 x AA batteries, SD card, hard carrying case and light sensor with protective cover For complete specs please download the product datasheet (not available for some accessories) Extech Light meter Lux meter SDL400 à¤Ã×èͧÇÑ´¤ÇÒÁà¢éÁáʧ à¤Ã×èͧÇÑ´áʧ