VT181/VT181E/VT182】測量范圍0.3mV~100V,共12檔精度±3%頻率響應5Hz~1MHz輸入阻抗10MΩ,43pF型號VT-181/181EVT-182電壓測量范圍電壓:1mV~300V,12檔*0.3m~100V,12檔dB:-80dB~+50dB(0dB=1V)*-90dB~+40dB(0dB=1V)dBm:-80dBm~+52dBm(0dBm=1Mw,600Ω)*-90dBm~+40dBm(0dBm=1Mw,600Ω)VT-181E電壓:10μV~300V,16檔10μV/30μV/100μV/300μV/1μV/3μV/10μV/30μV/100μV/300μV/1V/3V/10V/30V/100V/300V)滿刻度dB:-120dB~+50dB(0dB=1V)dBm:-120dBm~+50dBm(0dBm=1mW,600Ω)指示精度最大:滿刻度的±3%(1KHz級別)