Designed to shut down the motor if you roll over or lose control of your sled, the Phantom is an “intelligent cordless tether.” In other words, this new device doesn’t require a radio transmitter; it has a sensor to detect when your hand is at the throttle. Installation is simple, as is customizing the tachometer set point and time delay functions. Scroll down to watch a demo.
Cost: $395.00.
More info: www.sourceinnovations.ca
Here's a video that compares the stopping power of the Phantom Teth-Air to that of a corded tether.