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Any signal received while in this
mode will result in an alert –
BUT NO “BLOCKING” OF THE
LASER SIGNAL WILL OCCUR.
When no Laser signal has been
detected for 60 seconds, a
short “beep” will be heard,
coupled with FULL illumination
of the green power on LED. This
FULL illumination of the power
on LED confirms that the front
and rear transceivers have been
re-armed and are ready to
“block” future Laser
encounters.
Re-arming LaserPro 904
Once you have pressed the DIS
button, you can “rearm” the
blocking function without
waiting the 60 second time
period. To “rearm” LaserPro
™
904 BEFORE the automatic 60
second time out expires, simply
press the DIS button a second
time. LaserPro
™
904 will be
ready to “block” the Laser
signals.
Note: If the LaserPro
™
904 is not
disarmed during a Laser encounter
it will continue to return blocking
signals whenever receiving further
Laser transmissions.
How Laser (LIDAR) Operates
Laser speed detection is actually
LIDAR (Light Detection and
Ranging). LIDAR guns project a
narrow beam of invisible,
infrared light. The signal is a
series of very short infrared light
energy pulses that move in a
straight line, reflecting off your
car and returning to the gun.
LIDAR use the light pulses to
measure the distance to a
vehicle. A very accurate speed
reading is calculated by
comparing the change in
distance over time.
LIDAR (or Laser) is a newer
traffic monitoring technology
and is not as widespread as
conventional radar; therefore,
you may not encounter Laser on
a daily basis. And unlike radar
detection, Laser detection is not
prone to “false” alarms.
Because LIDAR transmits a much
narrower beam than does radar,
it is much more accurate in its
ability to distinguish between
targets and is also more difficult
to detect. As a result, even the
briefest Laser alert should be
How Traffic Laser Operates
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