1.test frequency:5Hz-1MHz 2.dual needle,soley and tracking measure 3.AC voltage:1mV-300V, max. 500V 4.dB measure: -80dB ... to 300mV rangeStabilityInfluence resulted from change of 10% power supply voltage is +/-5% of full scale.Survival voltageIn 1mV range, less ... are subject to change without prior notice. MVT-172 Millivoltmeter,dual-needle, 5Hz-1MHz frequency,1mV-300V test voltage millivoltage