Professor Motor "Commercial Track PRO" Model Electronic Slot Racing Controller - Recommended Operating Voltage Range : 10 to 15 volts - POSITIVE polarity - Includes 5 Ohms variable brakes, variable sensitivity (single knob adjust), internal DUAL aluminum heat sink, heavy 13 gage silicone leads & solid copper alligator clips w/boots - New "Platinum Series" DUAL transistor technology - Carbon wiper button for longer life and reduced maintenance (no lubrication required) - Recommended Applications : 1/24 commercial track racing through JK Falcon & 16D Motors

This controller replaces prior part number PMTR2101