* Speed control of a 12V, 4W permanent magnet D.C. Motor * Speed range:0 to3000 rpm (typical) * Opto -interrupter based speed in rpm * 4-digitspeed display in rpm * Electronic techo generator for feedback * Separate unit for motor in a see- through cabinet * Essential accessory - a CRO * Smooth, non-contact eddy current- brake for loading * Built-in 34digitDVMforsignal measurements * Built-in IC regulated internal power supply * Supporting literature and patch Cords included