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Mark Location
The Mark Location feature allows you to
mark any location for future reference.
Once marked, the 8500ci Plus will provide
an alert, accompanied by the label you
assigned to it, on the display.
There are four different labels you can
use when marking a location: speed trap
(SPDTRAP), speed camera (SPDCAM), red-
light camera (REDLGHT), and other
(OTHER).
To mark a location, simply press the
MRK button. The display will show,
“MARK?” accompanied by a voice message.
Press the MRK button again, and the labels
appear, starting with “SPDTRAP.” If this is
not the label you want to use, simply press
the VOL•MUTE button to scroll through
the other options.
Once you reach the label you want,
simply press the MRK button once more to
confirm. The word “MARKED” will appear
on the display, accompanied by a voice
prompt confirming you have marked and
labeled this location. Once marked, the
8500ci Plus will provide an alert as you
approach this location the next time.
NOTE: When a location is marked
the first time, you must travel at least
1 mile away from that location to
receive an alert.
The warning distance for each label is:
• Red light camers: 250 ft. or 10 seconds
• Speed cameras: 500 ft. when traveling
below 55 mph; 1,000 ft. when traveling
above 55 mph
• Speed traps: 0.3 mi. or approximately
1,584 ft.
• Other: 500 ft. when traveling below 55
mph; 1,000 ft. when traveling above 55 mph
NOTE: GPS Filter must be “ON” in
Preferences for the Mark Location
feature to work.
TrueLock
To lock out a known false alarm (X band, K
band, or laser), simply press the VOL•MUTE
button three times during the false alert.
NOTE: It is important to visually
look around to make certain no traffic
radar is present before locking out a
signal.
The first time you press the
VOL•MUTE button, the audio will mute.
The second time, the display will show
“Lockout?” accompanied by a voice prompt
asking if you want to lockout this signal.
The third time you press the VOL•MUTE
button, the location and frequency of that
signal is stored in the 8500ci Plus’s memory.
The display will show “Stored” to
acknowledge the information has been
captured.
The next time you drive past the area
and the signal is detected, the GPS icon will
rotate clockwise, providing a visual
indication of the rejected signal. The
detector will not provide an audible alert.
Over-Speed Alert
The Over-Speed Alert feature can provide
voice alerts that you are traveling over a
specified speed (selectable options range
from 30–95 mph; 70 mph is factory
default). Once the specified speed is
reached, you will receive an audible alert
and a warning message on the display.
GPS Indicator
The GPS icon is visible on the right side of
the 8500ci Plus display and indicates
whether it is receiving GPS signals. At start-
up, this icon will flash on and off until GPS
data is received. Once the signals are
received, the GPS icon will stop flashing
and remain on the display. The GPS icon
will rotate when a false alert is being
rejected.
Safety Camera Database
Your 8500ci Plus comes pre-loaded with
ESCORT’s DEFENDER Database, which
stores thousands of red-light and fixed-
position speed cameras and speed traps
throughout North America. The factory
setting is for all markers in the database to
be reported as you approach them. It is
recommended that you use the 8500ci Plus
in this mode. To modify which markers are
reported, see “Markers” in the Preferences
section.
Controls and Features
8 9
To unlock a signal, press and hold the
VOL•MUTE button while the icon is
rotating. An “Unlock” message will be
displayed. Press again to confirm and
unlock that signal.
Clearing the Database
At some point, you may want to clear all of
the data in the 8500ci Plus’s database. This
includes all markers and camera locations.
In order to do this, simply press and hold
the MRK, VOL•MUTE, and SEN buttons
while powering the detector on. An “Erase?”
message will appear on the screen. Press
the CRU button to confirm.
Audible Alerts
For Radar signals:
The 8500ci Plus uses a Geiger counter-
type sound to indicate the signal strength
and type of radar signal being encountered.
When you encounter radar, a distinct
audible alert will sound and will increase as
the signal gets stronger. This allows you to
judge the distance from the signal source
without taking your eyes off of the road.
Each band has a distinct tone for easy
identification:
X-band = beep tone
K-band = brap tone
Ka-band = double-brap tone
For Laser signals:
Since laser signals are a possible threat
no matter how weak, the 8500ci Plus alerts
you to all laser signals with a full laser alert.