AS1912 True RMS Millivolt MeterDetailed product description：

AS1912 true RMS millivolt meter is used to measure the RMS voltage and frequency of any waveform. The LCD screen displays the measurement results and the current instrument status, and the range can be set to manual or automatic mode. The measurement results can select the voltage effective value, dBm value, and frequency value of the measured signal. The setting of Δ dB function can be used for measuring gain, transmission ratio, insertion loss, etc.

AS1912 True RMS Millivolt Meter Technical Performance

Measure voltage range		Six ranges of 4mV, 40mV, 400mV, 4V, 40V, 400V
Measurement frequency range		5Hz ～ 5MHz
Measurement level range		－ 90dB ～＋ 52d （ 0dB=1V ），－ 88dBm ～＋ 54dBm （ 0dBm=0.775V ）
Voltage measurement error		Full value ± 1% ± 8 words
Frequency influence error		5Hz ～ 1MHz ± 2% ， 5Hz ～ 5MHz ± 5%
input resistance		About 2M Ω at 1kHz
input capacitance		≤ 40Pf (excluding cables)
Noise voltage		≤ 2 words (when there is a good short circuit at the input terminal)