*20double speed push button and one EMS button + one START button
*Control point up to 40
*With the battery voltage alarm device to cut off the circuit when voltage is insufficient.
*With the Rotate key switch to guarantee the safety.
*Set the internal functions by computer interface
*ALL push buttons can be set jump strokes, ordinary, mutual inhibition or not.
|Model||Operation Button||Button Type||Transmitter||Receiver
|F21-20D||20||Double Speed||Rotary key||Mushroom|
|Receiver EMS||Receiver Control Points||Receiver