best radar detector under 100 dollars

Our Top 6 Best Radar Detectors Under $100

Let’s face it, when driving on a highway, it’s pretty easy to over-speed without even realizing it. As a result, you could find yourself paying those hefty speeding tickets or even entering into the wrong books of the law.

While laser and signal detectors might not be any law enforcement fan favorite, they do help drivers avoid speeding tickets. And you don’t even need to go for the most expensive ones to get the job done; the best radar detectors under $100 are in most cases as effective as those pricey ones although you might have to sacrifice a few features.

With so many of these speed detectors now available in the market, it can be quite difficult to identify one that best fits your needs. Luckily, if you’re are on a budget and in search for an effective detector, you’ll be glad to see our top picks for best radar detectors under 100 dollars in 2018!

Best Radar Detectors Under $100

Whistler CR75 Laser Radar Detector

Whistler CR75 is without a doubt one of the best whistler detectors under 100 dollars. The budget-friendly model comes with 360 degrees perimeter protection to ensure maximum coverage on the rear, sides, and front. What’s more, this device which is easily best radar detector for less than 100 today boasts has a decent detection range for the four bands usually used for speed measurements; Superwide Ka-band, Laser, X band, and K band. As a result, you get alerted whenever there is a law enforcement officer trying to track your speed.

The Whistler CR75 also comes with a blue backlit OLED display screen that offers different parameters. It can detect multiple signals at once although it will prioritize the most important signal- usually the one within the closest range. And while you may not be after a cool design when looking for a radar detector, you’ll find Whistler CR75 to be not only cool but also compact and portable. The functions buttons and volume controls are perfectly positioned for an easy reach while the blue lights make it appealing to the eye.

What separates it from other models is its distinct handiness especially if you have long trips to handle. Also, perhaps what you’ll love the most about this device is that it comes with the Stay Alert feature that speaks to you after a while to ensure you don’t lose awareness and stay alert while driving. Finally, the price of this build is pretty good, sitting in the $90 range.


  • A reliable detector
  • Rarely detects wrong signals
  • Incredibly lightweight


  • Lacks a thoroughly written manual
Uniden DFR5 Radar Detector

This Uniden long-range radar detector is a cool, affordable option that comes with a variety of handy features. The unit offers a longer detection range that most other radar detectors under 100 dollars can’t reach. DFR5 comes with the Spectre I / IV / IV+ technology which ensures that no one tries to find your frequency.

DFR5 works with an advanced K band filter and this improves its strength to not only detect but also to alert you in case of an emergency radar system and police officers. Its easy-to-operate dot matrix display works without being affected by weather conditions.

Other features that this cheap radar detector comes with include volume knob, dim settings, mute option, setting saver, signal strength meter, and power on self-test.


  • Comes with GPS lockouts
  • K band filter doesn’t affect detection range
  • Excellent at filtering BSM’s


  • Lacks Bluetooth
Whistler CR80 Radar Detector

This is another model from Whistler designed to cover extra-long range. The Whistler CR80 boasts a 360-degree coverage to ensure you get covered from the front, sides, and the rear. To prevent false positives, this device comes with priority signaling feature which automatically selects the most important signals and displays them.

CR80 also features a total band detection and the Pop Mode to respond to brief bursts of radar. In addition, with a stay alert functionality, this device ensures that you stay awake especially when you’re on long trips. The high-performance device also comes with a bright icon OLED display to show the most important signals.

With the Whistler CR80, you get plenty of filtering thanks to the city and highway modes and Traffic Flow Rejection that sorts signals. It comes with safety warning system that warns the driver of any transmitters. Worried about other radar detector detectors? Don’t worry as the low emission style of the CR80 keeps you undetected while its safety warning system gives you some heads up any time there are transmitters in the vicinity.


  • Offers a 360 degree perimeter protection
  • Has the stay alert feature
  • Offers advanced warnings


  • You may have to deal with a few false positives.
Cobra SPX 900 Laser Radar Detector

The Cobra SPX 900 is another affordable yet ultra-portable radar detector under $100. Like most other tools in its price range, it offers a 360 degrees protection to ensure that any police radar gun stays at your watch. What’s more, it boasts a powerful CPU which is able to scan all police radar guns near your vehicle in less than 240 milliseconds.

As if that’s not enough, the SPX 900 detector is Specter and VG2 undetectable making it functionally invisible while still showing you other detectors in the vicinity.

The laser detector offers an easy-to-understand display that shows the types of bands being detected via unique identification icons. On top of the bright display, there are unique audio tones in case there are circumstances that prevent you from seeing it.

SPX 900 is intelligent enough to detect X, K and Ka radar signals with its warning tone increasing as you get closer to the source to ensure alerts appear in a timely fashion. For less than 100 dollars, this device from Cobra is worth a try.


  • Offers timely alerts
  • Has a bright display
  • Affordable


  • May give occasional false alerts
Whistler CR70 Laser Radar Detector

Whistler CR70 is one of the best radar detectors under 100 for anyone looking for a device supporting voice alerts and with traffic flow signal rejection. The device offers total laser detection and can detect Laser Ally, laser Atlanta Stealth Mode, and LTI truspeed S. On top of this, it comes with the Pop Mode that responds to brief bursts of radar. With it, you get real voice alerts which are verbal for bands received on the icon display.

Whistler CR70 detects all the 4 bands often used the US and Canada today including the superwide Ka band, X band, and K band. The detector offers a 360-degree maximum coverage to ensure that you stay protected from all directions. To reduce false alerts and improve its detection, this unit offers 3 city/highway modes to choose from including City, City 1 and City 2. It also has a quiet mode.

This device has a robust safety warning system that keeps you well informed of any transmission around you while only displaying the most important ones. It boasts a powerful lens that offers a wider field of view and has a longer detection for timely alerts.

This high-performance device goes off automatically when not in use to save battery.


  • Supports verbal voice alerts
  • 360-degree coverage
  • Offers timely alerts


  • Not very durable.
Escort Passport S55 Radar Detector

Going for a slightly over $100, Escort Passport S55 offers unique features and a reliable performance that you’d expect from a radar detector of this price range. The device surely won’t fail you when it comes to detecting police laser and radar guns. It offers super long range alerts on bands X, K and superwide Ka band. You can even detect VG 2 devices within your range, thanks to its Pop mode.

The S55 is an intelligent detector with the patented Autosensitivity mode to identify traps from various radar sources. To reduce false alerts, it comes packed with the innovative Traffic Signal Rejection software to sort and filter signals automatically. It’s easy to mount on the vehicle with magnets and sticky suction helping to keep it stable.

And there is more to this radar detector as it boasts a matrix display for crystal clear display of information. Besides, Passport S55 is compatible with Escort Love App which allows you to interact with other users and get real-time alerts as reported by fellow motorists.


  • Lightweight and Portable
  • Comes ready to use
  • Has a decent price compared to similar detectors.


  • Lacks a USB port.

Not sure how to install your newly acquired radar detector? Check out this simple video guide;


Traffic fines can be quite hefty depending on the State in which you reside as well as the speed you’re racing at. If you want to avoid getting into such messes, buying a radar detector is a great idea. And you know what, your best unit doesn’t have to cost you a lot of money. It is our hope that our list of top 10 best radar detectors under $100 will reliably help you dodge the police officers perfectly fine.

Leave a Comment

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Scroll to Top