Garmin VARIA ERTL616, Owner'S Manual

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Varia RDU Overview
Device button
Turns the device on and off.
Ambient light sensor
Detects available light and automatically adjusts the brightness of the
display.
Connection status LED
Appears solid blue when the device is paired with the radar device. Flashes
blue when the device is searching for the radar device.
FRONT and REAR device status
LEDs
Appears solid red when there is a device error.
Threat level LED
Changes color based on the potential level of threat. Green indicates no
vehicle is detected. Amber indicates a vehicle is approaching. Red indicates
a vehicle is advancing at a high rate of speed.
Vehicle position LEDs
Moves up the column as the vehicle gets closer to your bike.
8 The Varia eRTL616 and Your Radar Display Unit