While radar and laser dectectors can range from $20 to $1000+, don't make the mistake of buying an overly cheap one. Just one speeding ticket can easily cost you more than a mid-range priced unit so a good radar detector will easily pay for itself.
An easy #1 pick. Many radar detectors will have issues with false alerts which can be quite annoying. The PRO200 has various features that helps overcome these false alerts, and it actually works. Optimized for all US radar and laser guns for full protection with fast detection of half a second or less. The display has multiple brightnesses making night and day driving enjoyable while being highly readable in sunlight. The sensitivity to band singals is very good - and in almost all cases will be able to warn you in-time. This is a must buy for anyone looking for a radar dectector.
Beltronics PRO200 Radar/Laser Detector:
Our top choice for those who are on a tighter budget. The RAD450 has you covered with detection of all radar and laser signals with detection from the front and reas as well as being able to detect "Instant-on radar guns". You can go cheaper but you're really better off spending an extra $30-$50 to get a unit like the Cobra RAD450. For the extra money you're getting better protection against false alerts which can be very annoying as well as a silent mode and verbal alerts so you don't have to take your eyes off the road.
Cobra RAD 450 Laser Radar Detector: Long Range, False Alert Filter, Voice Alert & OLED Display: $146.98
Beltronics PRO200 is no question your best buy based on price, specifications and effectiveness.
Cobra RAD450 is your best choice if you want a cheaper option. You still get full radar and laser signal coverage, decent false alert protection and verbal alerts for just under $100.
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