Ground Separate Switch. 測試範圍: 2-CH 1mV - 300V, 12 Ranges dB: -60dB to + 50dB, 12 Ranges FREQ. Response: 10Hz to 500KHz±5% 準確度: ±3% of Full Scale (1 KHz) 電源供應: AC 115V/230V 60Hz/50Hz