Description: Current sensor chips: ACS712ELC-05B On-board power indicator and Pin 5V power supply Can measure the positive and negative 5 amps current, corresponding to the analog output 185mV/A The output voltage is VCC/2 when there is no test current through PCB board size: 31(mm) x 13(mm) Package Includes: 1 Piece 5A Range Current Sensor Module