Car Navigation Speed Camera Alert Or Radar Detector ?

You will find that a standalone radar detector can provide superior radar detection performance, alerting to a wider range of radar bands, as well as POP and instant-on radar, plus detecting radar much better at greater distances (11+ miles), around blind curves and over the hill.
The Escort Passport 9500i GPS radar detector even allows you to store the GPS location of previously detected photo speed traps and it will alert when you approach a known location. Another alternative is to use the GPS Mirror alone or in conjunction with radar detection and/or laser jamming. The GPS Mirror allows you to update a database of locations for photo radar worldwide, and alerts you as you approach a known photo radar location. The GPS Mirror will also integrate with a radar detector and/or laser jammer.
If you are concerned about police laser (LIDAR), your only alternative is a laser jammer. Most radar detectors will detect police laser, but by then it’s already too late. 0.2 seconds under the laser and your speed is recorded. A laser jammer detects and jams the laser gun, allowing you time to adjust your speed if necessary.