Descrition:The current sensor chips: ACS712ELC-30AThe module can measure the positive and negative 30 amps, corresponding to the analog output 66mV / APin 5V power supply, on-board power indicatorUsing gold plated circuit boardsNo test current through the output voltage is VCC / 2Size: 31 x 13mmNote:ACS712 is based on the principle of the Hall test, please use this field to avoid impactPackage included:50 x ACS712 Current Sensor Module