4 Channel Mixed-mode DC Remote Controller for 2 Motors Forwards and Reverse Rotation

Our suggestion is 4 relay 12VDC RF on / off transmitter receiver (S4U-DC12+C-4). This kind of remote control is 4 channels with multi-modes, which includes toggle, momentary, latched and momentary+toggle. It is flexible choice for you. You can remote control one 12V actuated motor and one 9V actuated motor since the receiver is normally open and closed terminals. The working distance is about 100M. 

B is common terminal. 12V motor is supposed to be connected to B terminals of relay 2&3. A is normally closed terminal and C is normally open terminal. Connect terminal C to the positive and connect terminal A to the negative. 9V motor is connected to B&C terminals of relay 1&4.

After wiring, you can control them by the transmitter C-4.

Press and hold button 2, 12V motor moves forward, release the button 2, 12V motor stops .

Press and hold button 3, 12V motor moves backward, release the button 3, 12V motor stops .

Press and hold button 1, 9V motor moves forward, release the button 1, 9V motor stops .

Press and hold button4, 9V motor moves backward, release the button 4 9V motor stops .