Using a remote kill switch is one of the most important things you can do in using your large scale RC Car in a safe manner. While being able to detect things like low battery voltage or loss of radio signal a remote kill switch is designed to cut the spark from the ignition on your RC Car. You no longer have to rely on things like a servo failsafe being set to the correct position and stopping the car with the brakes. Shutting the engine off is the most critical thing in preventing what could be a catastrophic crash.
The compact lightweight switch is easy to install and with spade style connectors it is ready to attach to Zenoah style ignition coils. Get yours here: TAY3050