FUTABA CA-RVIN-700 voltage return line 70V/18MZ 14SG T10J
The function of the return line:
It needs to be welded near the battery bus to accurately measure the main circuit voltage for voltage return. When the voltage is lower than the preset value, it can vibrate to remind you to land.
Support FUTABA remote control with return function, and the receiver must have return function.
Support FUTABA receiver models: R7008SB, R7003SB, R7014SB, R7018SB, R7006SB, R3008SB

