Outputs an analogue value corresponding to the amplitude of current flow. Current flow circuit is isolated from the input power and signal output circuit.
Pin 5V power supply, will light onboard power light.

Plus or minus current can be measured by the module, the corresponding
analog output = (VCC / 2)-(66mv * A).
with no current flowing, the output voltage is VCC / 2
The size of the PCB board: 31 (mm) x13 (mm);
Current sensing : 30A Full scale