ACS712 20A Current Sensor Module For Arduino

Hall Current Sensor Module ACS712 20A model The device consists of a precise, low-offset, linear Hall circuit with a copper conduction path located near the surface of the die. Applied current flowing through this copper conduction path generates a magnetic field which the Hall IC converts into a proportional voltage. The current sensor chips: ACS712ELC-20B; Pin 5V power supply, on-board power indicator; The module can be measured plus or minus 20 amps, corresponding to the analog output of 100 mV/A ; There is no the detection current through, the output voltage is VCC / 2; PCB board size: 31 (mm) x13 (mm); Note: ACS712 Hall detection principle, when you use to avoid magnetic field impact this!