â·ÃÊͺ¶ÒÁÃÒ¤Ò SDL600: Sound Level Meter/Datalogger Records data on an SD card in Excel® à¤Ã×èͧÇÑ´ÃдѺ¤ÇÒÁ´Ñ§àÊÕ§ Sound Meter > Professional Sound Level Meter à¤Ã×èͧÇÑ´àÊÕ§ meets ANSI and IEC 61672-1 Type 2 SDL600: Sound Level Meter/Datalogger Records data on an SD card in Excel® format Features: • High accuracy ±1.4dB meets ANSI and IEC 61672-1Type 2 standards • 30 to 130dB measurement range • Auto or Manual ranging • AC analog output for connection to an analyzer or recorder • Large backlit LCD display • Stores 99 readings manually and 20M readings via 2G SD card • Records readings with real date and time stamp • User programmable sampling rate: 1 to 3600 seconds • Min/Max and Data Hold functions • Auto power off with disable function • Built-in PC interface • Complete with 6 AA batteries, SD Card, wind screen,and hard carrying case Specifications: Range 30 to 130dB (3 ranges) Basic accuracy ±1.4dB Frequency Range 31.5 to 8000Hz Weighting A and C Response Time Fast (125ms) / Slow (1s) Datalogging 20M data records using a 2G SD card Analog Output AC PC Interface USB Dimensions 9.8 x 2.9 x 1.9" (250 x 73 x 48mm) Weight 18.3oz (520g) Datalogger Extech SD Card SDL600 Sound Level Meter à¤Ã×èͧÇÑ´ÃдѺ¤ÇÒÁ´Ñ§àÊÕ§ à¤Ã×èͧÇÑ´àÊÕ§ à¤Ã×èͧÇÑ´áÅкѹ·Ö¡¢éÍÁÙÅ