Operating instructions, Alerts, Speed range zone boundary mph 1 2 3 – Cobra Electronics AURA SL3 User Manual
Page 15: Alert type audio alert sounded

Nothing Comes Close to a Cobra
®
Alerts
The Cobra SL3 responds to four types of alerts:
Speed Trap, Photo Enforcement (Red Light
and Speed Cameras), Caution Areas (high accident locations) and User Points. The audio
alerts are sounded whenever the SL3 crosses the boundries as shown in Table 1 and Figure 1.
The Audio Warnings are shown in Table 2.
Operating Instructions
Operation
SPEED RANGE
ZONE BOUNDARY
MPH
1
2
3
1 - 45
1000 ft.
500 ft.
150 ft.
Greater than 45
2500 ft.
1250 ft.
400 ft.
Table 1
Table 2
ALERT TYPE
AUDIO ALERT SOUNDED*
Known Speed Traps
1 Beep
Photo Enforcement Area
2 Pulses
Caution Area
3 Buzzes
User Location
4 Chirps
14
LOCATION
ZONE 1
ZONE 2
ZONE 3
DIRECTION
OF TRAVEL
Figure 1
DISTANCE TO LOCATION
* Upon unit power-up, all alert tones will be played in the order shown on this table as part of a
unit self-test.