à¤Ã×èͧÇÑ´ÃдѺ¤ÇÒÁ´Ñ§àÊÕ§ Sound Meter > à¤Ã×èͧÇÑ´àÊÕ§ Datalogger Sound Level Meter ẺºÑ¹·Ö¡¢éÍÁÙÅ HD600 ºÑ¹·Ö¡¢éÍÁÙÅ µèÍà¢éÒ Computer ä´é High accuracy datalogging of up to 20,000 records Meets ANSI and IEC61672-1 Type 2 standards Features: • Three ranges from 30 to 130dB • Datalogging capability up to 20,000 records • Capture up to 10 readings/sec when connected to a PC • Records readings with real date and time stamp • Min/Max and Data Hold functions • Heavy Duty rugged double molded housing • USB port includes software • Auto power off with disable capability • Includes Windows® compatible software, USB cable, wind cover, tripod, hard carrying case, AC adaptor, and 9V battery Specifications Range 30 to 130dB Basic accuracy ±1.4dB Weighting A and C Response Time Fast/Slow Analog Output AC/DC Datalogging 20,000 points PC Interface USB Dimensions 10.9x3x2" (278x76x50mm) Weight 12.3oz (350g) à¤Ã×èͧÇÑ´ÃдѺ¤ÇÒÁ´Ñ§àÊÕ§ Sound Meter > à¤Ã×èͧÇÑ´àÊÕ§ Datalogger Sound Level Meter ẺºÑ¹·Ö¡¢éÍÁÙÅ HD600 ºÑ¹·Ö¡¢éÍÁÙÅ µèÍà¢éÒ Computer ä´é