You can detect lidar pointed at your car, but lidar measures
your speed so fast you don't have time to react.By the time you
know about it they already have you.
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LIDAR is a remote sensing technology that measures distance by
illuminating a target with a laser and analyzing the reflected
light.
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Sonar, Lidar.
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Yes, just look for detectors which list "Laser". Laser is the
North American terminology used for Lidar detection.