The intelligent chip that shuts down your key fob’s signal the moment you stop moving.
Your keyless car system is convenient, but it has a dangerous vulnerability. Thieves use signal amplifiers to extend your key fob’s range—even when your keys are safely inside your home. In less than 30 seconds, they can unlock and drive away with your car.
Thief amplifies your key fob signal from outside your home
Extended signal tricks your car into thinking the key is nearby
Car unlocks and starts—thief drives away in seconds
KeyGuard is the non-invasive, permanent, and automatic fix. Our intelligent chip uses motion detection to protect your car without sacrificing convenience.
When you pick up your key, the chip instantly reconnects the battery. Your keyless system works exactly as it always has.
After 3 minutes of no movement, KeyGuard automatically disconnects the battery, cutting off the signal. No thieves can amplify what doesn't exist.
Why KeyGuard outperforms traditional Faraday bags and signal-blocking boxes
Install KeyGuard in under 5 minutes. No tools, no technical knowledge required.
Open your key fob casing (usually just a small screw or clip)
Wrap the KeyGuard chip around your key fob battery
Close your key fob. Done! You're protected automatically from now on.
Join thousands of car owners who sleep better knowing their vehicles are protected
We stand behind our product with a full year warranty
Fast, free delivery to your door
No tools, no technical knowledge needed
