ACS712 Current Sensor Module (20A)

1) The current sensor chips: ACS712ELC-20A;
2) Pin 5V power supply, on-board power indicator;
3) The module can measure the positive and negative 20 amps, corresponding to the analog output 66mV / A;
4) No test current through the output voltage is VCC / 2;
5) PCB board size: 33 (mm) x14 (mm);