Electronics
iDisarm Bluetooth Car Engine Immobilizer
Here is a smart kit that pairs your smartphone to your car, making it impossible for others to drive it without your phone around. The iDisarm Bluetooth engine immobilizer plugs into your vehicle. You can use the device to turn the engine off mid-drive.
The device has automated arming and disarming and works with trucks, boats, lawnmowers, and other machines that require electricity to run.