ITEM NAME:5Pc 30A ACS712 Module Measuring Range Current Sensor Hall Board for Arduino Description: - he current sensor chips: ACS712ELC-30A. - Pin 5V power supply, on-board power indicator. - The module can measure the positive and negative 30 amps, corresponding to the analog output 66mV/A. - No test current through the output voltage is VCC/2. Specification: - Size: 31x13mm/1.2 x 0.5inch Package Included: 5 Pieces 30A ACS712 Current Sensor Module Note: ACS712 is based on the principle of the Hall test, please use this field to avoid impact.5 Pieces 30A ACS712 Current Sensor Module. People always bought together with.