Trolling Motor RF Remote Control System, 12VDC Polarity Reversing Speed Control The RF340-TM40A is a 12VDC Polarity Reversing Remote Control with speed control and is designed to provide variable speed bi-directional control of DC motors. Output relays rated at 40A @12VDC. The output is a latching connection. Pressing the up or down arrow button starts the motor and it will continue to run until the stop button is pressed. This control incorporates a waterproof transmitter. By utilizing pulse width modulation, the output voltage and thus the speed of the DC motor can be varied from 1% to 74% power in 1% increments. When the control reaches 75% power it will run at full speed. The receiver is housed in a metal enclosure and the electronics are encapsulated for waterproofing. The control is suitable for use in harsh environments. Operating temperature range – 0°F to 160°F. Up to 30 transmitters can be used with each receiver. The control uses code learning to program transmitters. Transmit range is greater than 300 feet under normal operating conditions. Additionally, there is a 3 position switch which allows the receiver to be operated without using the remote transmitter. The control will run at full speed when the manual control is used.