... :1mV-300V, max. 500V 4.dB measure: -80dB~+50dB MVT-172: MillivoltmeterComplete Japanese technologies and imported component assembly ensure minimum accuracy ... /60HzDimensions128(W) x 190(H) x 239(D) mm MVT-172 Millivoltmeter,dual-needle, 5Hz-1MHz frequency,1mV-300V test voltage ...