Hall Current Sensor Module ACS712 model for Arduino 20A

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1, current sensor chip: 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 ou tput 100mV / A; 4, there is no the detection current through, the output voltage is VCC / 2; 5, PCB board size: 31 (mm) x13 (mm); Note: ACS712 Hall detection principle, when you use to avoid magnetic field impact this! price $/ 1 pc Show more