The ACS712 is a fully integrated, hall effect-based linear current sensor with 2.1kVRMS voltage isolation and a integrated low-resistance current conductor. Technical terms aside, it’s simply put forth as a current sensor that uses its conductor to calculate and measure the amount of current applied.
ACS712 5A Current Sensor Module-5A Range
1, the current sensor chips: ACS712ELC-05A;
2, pin 5V power supply, on-board power indicator;
3, the module can measure the positive and negative 5 amps, corresponding to the analog output of 185 mV / A;
4, there is no the detection current through, the output voltage is VCC / 2;
5, the PCB board size: 27.4 (mm) x11.8 (mm);