型號VT-181/181EVT-182VT-183VT-185VT-186伏特表 電壓測量范圍 電壓:1mV~300V,12檔 *0.3mV~100V,12檔電壓:10μV~300V,16檔 (10μV/30μV/100μV/300μV/電壓:1mV~300V,12檔電壓:1mV~300V,12檔(1mV/3V/10mV/30mV/100mV/300mV1V/3V/10V/30V/100V/300V)滿刻度 電壓:0.3mV~100V,12檔(0.3mV/1mV/3mV/10mV/30mV/100mV/300mV/1V/3V/10V/30V/100V滿刻度dB:-90dB~+40dBdB:-80dB~+50dB(0dB=1V)*-90dB~+40dB(0dB=1V) (1mV/3mV/10mV/30mV/(1mV/3mV/10mV/30mV/100mV/300mV/1V/3V/10V/30V/100V/300V)滿刻度dB:-80dB~+50dB(0dB=1V)dBm:-80dBm~+52dBm1mV/3mV/10mV/30mV/100mV/滿刻度dB:-80dB~+50dB(0dB=1V)dBm:-90dBm~+42dBm(0dBm=1mW,600Ω)dB:-120dB~+50dB(0dB=1V) (0dB=1V)dBm:-80dBm~+52dBm(0dBm=1mW,600Ω) (0dBm=1mW,600Ω)*-90dBm~+40dBmdBm:-120dBm~+52dBmdBm:-80dBm~+52dBm (0dBm=1mW,600Ω) (0dBm=1mW,600Ω)(0dBm=1mW,600Ω) *VT-181E