TVT-322 Dual-needle Millivoltmeter

Specifications:Measuring range: voltage: 300uV --100V in 12 steps dB:-70dB to +40dBdBm:-80to 52dBm (0dB=1Vrms, 0dBm=0.755V)Measuring Mode: Measuring with voltage adjustment.Error: within 3% at 1 KHz, full scaleFrequency Response: 5Hz--1MHz:±10% 10Hz---500KHz:±5% 20Hz--200KHz:±3% 30Hz ---100KHz:±2% Readout at 1 KHz, as a reference.Max. Input Voltage: 500V (DC+AC peak) :( 3V TO 100V) 300V (DC+AC peak) :( 300uV TO 1V)Stability: ±5%of full scale ,at 10%variety of line voltageSurvival Voltage: Less than 200uV AT 1 mV range and short-circuit of inputCross-talk: Independent: ≤80dB connecting 600Ω load cosistent:≤50dBconnecting 600Ω loadGain: 60dBOutput Voltage: 0.1Vms±20% at full scaleOutput Resistance: 600Ω±20% at 1 KHzDistortion: Less than 30dB at 0.3mV rangeFrequency Response: 5Hz---500 KHz, within±3%Ambient: 10oC--40oC/85%RHPower supply: 220V/110V±10%, 50Hz/60HzWeight: 2.5kg