Current Sensor Module; Model : ACS712, Range Current : 30A, Current sensor chip: ACS712ELC-30A. The module can measure positive and negative 30A current, corresponding to analog output 66mV/A; IP=0A, that is, when there is no detection current passing, the output voltage is VCC/2. ACS712 is based on the principle of Hall detection, try to avoid the influence of magnetic field when using it. load detection and management in of electric motors, and overcurrent fault protection in of switching power supplies and various electronic products. You get 5 x ACS712 30A Range Current Sensor Module, 1 x 15Pin Female to Male Cable. Product parameters: 1.Current sensor chip ACS712ELC-30A 2.Pin 5V power supply, onboard power indicator 3.The module can measure positive and negative 30A current, corresponding to analog output 66mv/A 4.When no detection current passes, the output voltage VCC/2 5.PCB board size: 32x14mm/1.26x0.55in Note: ACS712 is based on the principle of Hall detection, please try to avoid the influence of magnetic field when using it! Package includes: 5 x ACS712 30A Range Current Sensor Module 1 x 15Pin Female to Male Cable Color: As Shown Material: Metal+Plastic Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.