JK with POTENTIOMETER
it's an industrial remote control with a multifrequency device
and bidirectional transmission that allows you to remotely control industrial plants such as cranes, lifts and earthmoving machines. The JK remote control has a potentiometer to adjust the speed of movement
and single or double step pushbuttons to activate the desired functions. The JK remote control also has feedback LEDs that indicate the battery status, the connection with the receiver and any alarms.