SL420 Micro gyro with Revision 4e software for small electric helicopters.

Please note: to get the optimum performance from your small electric heli, you will need a high-speed digital servo, most of the main manufacturers now do a mini or micro digital servo.

Essentially, the SL420 is identical to the SL560, with the one difference that it has no PC interface and so cannot be customised by the pilot.

• Controls pirouettes up to 750 degrees a second
• Optimal performance with Digital/Super servos (conventional also usable)
• Plus all the usual SmartLock features.