A:Answer Detection range varies depending on the type of device, radar or laser, and the environment. On open, flat, straight roads expect several miles of warning to radar. You will notice less range on curvy, hilly, roads with a lot of obstacles such as buildings and trees.
With laser expect 1/2 to 1/4 mile range, again depending on the environment. For maximum laser detection performance, be sure the detector is mounted level and low on your windshield with nothing blocking its view of the road.
