WY1972D is a fully automatic digital dual channel AC millivolt meter with a large LCD screen that displays multiple sets of data simultaneously This machine has functions such as common ground/floating and dual channel synchronous/asynchronous range control, which can conveniently test the balance and gain of dual channels This machine is the preferred choice for audio engineering, college electronic laboratories, and analog signal testing  

Characteristics:
Simultaneously display voltage value and dBm/dBV value
Multi parameter automatic measurement
High impedance, high resolution, high precision
Synchronous switching function: convenient for measuring the consistency of stereo amplifiers
△ dB calculation function: convenient for measuring gain, insertion loss, amplitude frequency characteristics, etc. between two output and input channels
Floating function: capable of effectively measuring non ground signals
Automatically reset to zero  


Main technical performance:
1. Voltage measurement range:
30 μ V~400V
2. Level measurement range:
-90dBV~+52dBV, -88dBm~+54dBm
3. Highest resolution:
1 μ V, 0.01dB
4. Frequency response range:
5HZ~2MHz
5. Inherent error:
1% ± 6 words
6. Input impedance:
Input resistor 10M Ω, input capacitor 30PF
7. Communication output:
When fully displayed, output 100mVrms, output impedance 10k Ω
8. Display function:
3999 dual display voltage value, three digit dual digital display dB value
9. Consistency between two channels:
± 1%
10. Interval height between two channels:
≥ 100dB
11. Dimensions/Weight:
280×240×88(L×W×H)mm,3kg