國(guó)際規(guī)范IECPub651Type2,ANSIS1.4Type2頻率范圍31.5Hz-8KHzA加權(quán)30dB-130dBC加權(quán)30dB-130dB檔位6檔位,間隔10-dB30-80dB/40-90dB/50-100dB/60-110dB/70-120dB/80-130dB自動(dòng)換檔30-130dB時(shí)間加權(quán)FastandSlow動(dòng)態(tài)范圍50dB數(shù)字顯示4位數(shù)LCD(0.1dB分辨率)Quasi-analogbarindicator1dBdisplaysteps,50dBdisplayrange,updatedevery50ms.過(guò)載指示每個(gè)范圍之上限最低指示每個(gè)范圍之下限麥克風(fēng)1/2inch電容式麥克風(fēng)模擬AC/DC輸出0.707Vrms(atfullscale),10mVDC/dB.記錄(Datalogging)可記錄16000筆資料操作及儲(chǔ)存溫濕度0-50℃,10-90%RH電源one9Vbattery尺寸及重量265(L)x72(W)x21(H)mm 325g附件使用說(shuō)明書(shū),電池,RS-232Connectingcable攜帶盒,調(diào)整起子,軟件,風(fēng)罩,9Pinto25Pin轉(zhuǎn)換頭changer,3.5fplug