The Altitude Motor Switch (AMS) is a versatile device suitable for several competition categories where the altitude or motor run time shall be limited. It can be used also as a standalone telemetric variometer. The sensor is usually connected between the receiver throttle channel and the appropriate signal input of the electronic speed controller.

The Altitude Motor Switch (AMS) is a versatile device suitable for several competition categories where the altitude or motor run time shall be limited. It can be used also as a standalone telemetric variometer. The sensor is usually connected between the receiver throttle channel and the appropriate signal input of the electronic speed controller.