Hand Held Module For Atomic Tbi Replacement Hand Held Module MSD IgnitionThe Atomic's handheld monitor gives you access to the Atomic EFI setup for your application! This monitor, combined with the self learning technology from the internal ECU, eliminate the need for a laptop. Simply push the joystick left, right, up, and down to move through the options. Within minutes the setup will be complete! Plus, the handheld will act as a dash to display all that is happening in your new Atomic injected engine such as coolant