Radar Detector
But as days go by and technology advances, people are no longer using the devices that are operated by radio waves but are using ones that operate more easily. The new speed detection devices are known as pulsed laser lights or LIDAR. It is said that the LIDAR speed detection device is not as effective as the radar detector that operates using radio waves. This is because the output beam of the device is very accurate and focused. Another reason why radio waves beat LIDAR is because with LIDAR the beam can only go as far as 6 feet where as the radio waves can stretch to over 85 feet. Another important fact is that when a police officer wants to see the speed of the moving vehicle they are going to point the beam in the front of the car, at the headlights and because the radar detectors are built on the windshield of the car, which is away from the beams aim, sometimes the device will not show a reading at all.The radar detector was a very clever design and who knows, maybe it can help prevent motor vehicle accidents and hopefully save the lives of millions of innocent people.