Radar detectors are important to avoid penalties imposed by law enforcement agencies including the traffic police. There are different types of radar detectors in the market however deciding upon which one would be the best one for you to go for would usually be a challenge for many first time buyers.
The best radar detector for you would obviously be the one that can detect specific types of radars that you might want to always be able to detect well in advance. If you are looking to avoid a certain type of radar and you are considering to purchase the best radar detector for it then you will want to be specific with what it is that you are trying to detect with it.
You cannot go ahead and just get any radar detector expecting it to work to your satisfaction. Even the most expensive ones may not accurately be able to detect the kind of signals that you might be after. Some of them may pick unnecessary and inaccurate signals that would be irrelevant to your targets or purposes. And getting alerts for it every time would also prove to be inconvenient for you.
You may want to visit Motorists and get tips and ideas on choosing the best radar detectors when trying to detect signals of a certain nature.