Ideal for measuring your vehicle circutry easy to use measuring device to check the circuits in the car the car amperemeter has a flat plug in fuse adapter which allows you to determine the load on the individual circuits directly in the car fuse box it is also possible to check leakage currents that drain the car battery ideal for hobby or professional use technical specifications with led lamp and easy to read lc display measuring range up to 20 ampere 1999 v dc ac with battery cr2032