Garmin Varia™ RearVue 820

Varia RearVue 820 provides a wide field of view and powerful radar for reliable alerts up to 175 meters away. It features a bright tail light visible up to 2 km and a brake light that indicates slowing or stopping.

• The description claims the radar can detect vehicles up to 175 meters away.
• The description claims the tail light is visible up to 2 km away.
• The description claims the brake light alerts others when slowing or stopping.