Model No.: : ST-109 Product Description - Frequency range: 10Hz ~20KHz. - Measurement range:30dB~130dB. - Dynamic range:100dB. - A/C/Z frequency weighting. - Fast, Slow, Impulse Peak response time. - DC & AC Output. - Bargraph display. - USB interface. - Storage 37,000 records, auto-mating transfer to micro SD card. - Comply with the following standards: IEC 61672-1 : 2002 Class1 ANSI S1.4 Type 1 CNS NO.7129 Type 1 JJG-188-2002 Class1 SPECIFICATIONS: USB interface Yes Micro SD card Up to 32G Bargraph display Yes Display 3 1/2 digit backlit LCD display, maximum reading of 2000 Display refresh rate 1 time/ per second Applicable specifications - IEC 61672-1 : 2002 Class1 - ANSI S1.4 Type 1 - CNS NO.7129 Type 1 - JJG-188-2002 Class1 Microphone 1/2" pre-polarized condenser microphone build in preamplifier: -26 +/- 2dB (50mV/Pa) Fequency range: 10 Hz~20 kHz, heat noise : Measurement items SPL, Leq, SEL,Max, Min Measurement range 30dB ~ 130dB (A), 35dB ~ 130dB (C), 40dB ~ 130dB (Z) Dynamic Range 100 dB Integrate Time Setup randomly,10s, 1m, 5m, 10m, 30m, 1h, 2h, 4h, 8h, 16h, 24h or set in a given range Max. peak C sound level measurement 70~133 dB Time weighting Fast, Slow, Impulse, Peak Frequency weighting A/C/Z Frequency Range 10Hz~20KHz DC output 2Vdc/130dB AC output 2Vrms/130dB Battery Life 30 hours Power LR6 1.5V*4 Alkaline batteries AC Adapter 100V~240V Dimensions 285(L) x 90(W) x 39(H) mm Weight 550g ( including Batteries); 2.5KGS (including package) Aplication - Evaluation of environmental noise. - Measurements of noise at workplaces. - Assessment of product noise. -------------------------------------------------------------------------------------------------------------------------------------------------------- ¢ÍãºàʹÍÃÒ¤ÒËÃ×ÍÊͺ¶ÒÁ¢éÍÁÙÅà¾ÔèÁàµÔÁ 0922530999 , 0848744848ËÃ×Í email ( t_phuttharat@hotmail.com ) ªÓÃФèÒÊÔ¹¤éÒâ´Â¡ÒÃâ͹à§Ô¹ â´Â¨Ð·Ó¡ÒÃÊè§ÊÔ¹¤éÒã¹Çѹ¶Ñ´ä»â´ÂºÃÔ¡Òà EMS áÅШÐÊè§ Tracking NO. ãËé·Ò§ EMS ÃÍÃѺÊÔ¹¤éÒÀÒÂã¹ 2-3 ÇѹËÅѧ¡ÒèѴÊè§ »Å. ¡Ã³ÕäÁèÁÕÊÔ¹¤éÒã¹ÊµçÍ¡ÍÒ¨µéͧãªéàÇÅÒ㹡ÒÃÊÑ觫×éÍ»ÃÐÁÒ³ 45 Çѹ·Ó¡Òà ·´ÅͧãªéÊÔ¹¤éÒáÅÐÊÔ¹¤éÒäÁèµÃ§¡ÑºÃÒÂÅÐàÍÕ´äÇé ËÃ×Í äÁè¾Íã¨ã¹µÑÇÊÔ¹¤éÒ àÃÒÂÔ¹´Õ¤×¹à§Ô¹ 100% (ÀÒÂã¹ 7 Çѹ)