20A range ACS712 module current sensor module Product Description1, current sensor chip: ACS712ELC-30A;2, pin 5V power supply, on-board power indicator;3, the module can ... / 2;5, PCB board size: 31 (mm) x13 (mm);Note: ACS712 Hall detection principle, when you use to avoid magnetic field ... from different batch. However, it won't affect your use. 20A range ACS712 module current sensor ...