Beltronics Laser Pro 904 Owner's Manual - Page 7

How Traffic Laser Operates 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 7