Fantastic device to centre your servos before installing them on you heli or plane.
Set your servo to neutral position before connecting the arms and control rods. Then you can set it on manual mode to check the throws and binding, etc. This unit beats connecting up to your receiver first and having neutral points all wrong or binding a servo and destroying it.
This unit can be used in 3 modes
● Manual - you cna move the servos and check the throws manually by turning the knob
● Neutral - servos are automatically set to neutral position (great of heli flyers)
● Auto - this mode operates the servos and moves the servos to their extreme position automatically
Use a ESC to power up the servo tester. DO NOT plug this directly to a battery or you may end up burning this unit and also your servos

Fantastic device to centre your servos before installing them on you heli or plane.
Set your servo to neutral position before connecting the arms and control rods. Then you can set it on manual mode to check the throws and binding, etc. This unit beats connecting up to your receiver first and having neutral points all wrong or binding a servo and destroying it.
This unit can be used in 3 modes
● Manual - you cna move the servos and check the throws manually by turning the knob
● Neutral - servos are automatically set to neutral position (great of heli flyers)
● Auto - this mode operates the servos and moves the servos to their extreme position automatically
Use a ESC to power up the servo tester. DO NOT plug this directly to a battery or you may end up burning this unit and also your servos