Bestdotek&reg; Remote Kill Switch kit for HPI Baja 5B buggy 5T King Motor T1000 LOSI [1]Allows you to Shut Off your engine from your remote using the 3rd channel [2]"Auto Engine Shut Off" Feature kills the engine Automatically when Battery is Low or radio signal is weak [3]-Ideal Safety Feature for all RC engines with a petrol/gasoline motor, Magneto Ignition, and stop switch. Works for: HPI Baja 5B, SS, 5T, 5SC, Losi 5ive-T, FG Marder, RedCat, Rovan, King Motor, etc...etc... [4]You can Remotely shut off the engine from your remote control. This Requires a free 3rd channel on your radio Transmitter (often marked as AUX). This ideally needs to be a 3rd channel with On & Off function. Works with all 3 Channel Radio systems that have on/off function on 3rd channel. So far, I have only found the Spectrum DX3C not having an on/off function on third channel. [5]This Kill Switches' microprocessor constantly monitors the signal to the receiver for glitches or weak radio signal. If the radio Signal or the Battery supply falls under the required level, the module Shuts the Engine OFF (cuts off electricity to the spark plug).