適用標(biāo)準(zhǔn)ANSIS1.25-1991,Aweighting顯示范圍0~9999%DOSE門檻音壓位準(zhǔn)80,84,85,90dBSelectableThresholdlevelSelectablefrom70to90dB,1dBstep位準(zhǔn)-時(shí)間轉(zhuǎn)換率Selectable3dB,4dB,5dBor6dB過載指示115dBA分貝峰值140dB動態(tài)測量范圍70-140dBA準(zhǔn)確度 1.5dBref.94dB@1KHz分辨率0.1dB頻率加權(quán)A時(shí)間加權(quán)FAST,SLOWSelectable麥克風(fēng)1/2inch全向性預(yù)極化電容式麥克風(fēng)