There was a time when having a speed gun radar detector installed in your car was highly illegal and in fact, it is worth pointing out that in some regions and countries this is still the case. But for those places where you can get an early warning of a speed trap there is the iRad 230 from Cobra Electronics. This is slightly different from a standard speed radar gear this is because its made up of a community of users all of which are updating the community on speed traps and red light cameras.
There user gets the free iRad smartphone app available for Android or iOS powered devices as well as the device itself, which is small at just 4.22 inches (L) x 2.92 inches (W) x 1.15 inches (H) and it weighs in at just over 5 ounces. All of the information is displayed on the smartphone, such as live radar, laser alerts and the normal cameras designed to catch and fine drivers who make the odd mistake now and then.
The iRad will set you back around $100 at the moment with the normal price being $130.