In the UK we have more speed cameras than the rest of Europe put together. As a result, more than two million drivers get caught every year – so some help in staying on the right side of the law is pretty much essential. Trap alerts are now bundled into many portable sat-nav units, but if you have a built-in guidance system there is still a role for the standalone locator. For less than £100, you can get some serious licence protection from the Novus GPS Rider. It has a rechargeable battery and an earphone socket for motorcycle riders. On test, it found all the traps, providing audible and visual confirmation. There are free updates for life, which makes it a very sound buy.