Views on the ACS758 breakout board

Hi,
I was hoping to measure the current drawn by 2 motors and feed this data into an arduino, so I can keep track of the energy consumption over time.

I came across the ACS758 breakout board: 50A_Current_Sensor_SKU_SEN0098_-DFRobot
May I know the minimum current the board can measure please? And whether this is the right kind of current sensor for the project.

Many thanks,
Jayson