Hall current sensor module

Model: ACS712.
Hall current sensor module.
The current sensor is an economical solution to measure current, internally it works with a Hall effect sensor that detects the magnetic field that is produced by induction of the current that circulates through the line being measured. The sensor gives us a voltage output proportional to the current. The sensor gives us a value of 2.5 volts for a current of 0 A and from there it increases proportionally according to the sensitivity, having a linear relationship between the sensor's voltage output and the current.
Range: -30 A up to 30 A.