Staff Answer
Nov 12, 2026 - 12:22 PM
The Garmin Catalyst R1 is a rear-mounted racing radar that gives visual alerts on heads-up indicator lights when a vehicle approaches from behind or sits in your blind spot. The lights sit in your line of sight, so you keep your eyes on the track ahead.
The radar mounts to the rear of the car, and the indicator lights connect on a 9.85 ft (3 m) cable. It connects over Bluetooth to the Garmin Catalyst Radar app on your smartphone. For lap data and coaching, see the Garmin Catalyst 2.
