Uniden R4 EU Extreme Long Range Radar Detector


4 in 1: 3D Radar, Radar, Laser, GPS POI Radar Detector

Uniden R4 EURO – the No. 1 from USA and Canada

  • Extreme Range Laser Radar Detection
  • Two LNA (Low Noise Amplifier) Design
  • 360 Degree Digital Signal Processor
  • GPS With Red Light Camera Alerts (Europe)

Available on backorder


The new Uniden R4 EU is an all new 2022 platform with a much greater range. It has a new Auto Mute Memory feature, which automatically locks out false alert locations. The R4 also has the best K Band filter on the market, offering the least amount of false alerts from blind spot monitors and K Band sensors in other vehicles. When you need the best information possible, and none of the noise, Uniden’s R4 Extreme puts you miles ahead.

Uniden R4 Product Overview

  • Extreme Range Laser Radar Detection
  • Two LNA (Low Noise Amplifier) Design
  • Digital Signal Processor
  • GPS Built-in for Red Light and Speed camera locations (US/CANADA/NEW including Europe!)
  • Ultra-bright, Easy to Read, Multi-colored OLED Display
  • MRCD/MRCT (Alert priority: Laser, MRCD, Ka, K, X) with customizable tones
  • Red Light Camera Alert
  • Speed Camera Alert
  • Auto Mute Memory – Automatically locks out false alert locations
  • Advanced K/KA Band Filters
  • Voice Notifications
  • GATSO Detection
  • Quiet Ride (Speed-based Auto Mute)
  • Auto Dim
  • Bogey Tone, Customizable, Alerts
  • Radar Band Frequency Display (Current Speed, Battery Voltage, Altitude, Clock)
  • Laser Gun Identification
  • Spectre Elite Undetectable
  • MAX Speed Warning System
  • Suction Mount Included (single and double)
  • Carrying Case Included
  • Cigarette Adapter with Mute Key, USB port, Data Cable, and Remote Keypad (optional accessory)
  • Upgradeable Firmware

Uniden R4 Box include

  • Uniden R4 Radar Detector
  • 12V DC power cord with RJ11 connector (Mute key, Optional Remote Keypad, USB Port)
  • USB to Micro-USB Data Cable
  • R4 Windshield mounting bracket (1 suction cup)
  • R4 Windshield mounting bracket (2 suction cups)
  • Hook and loop fastener tape
  • Uniden R4 Owner’s manual (English, Spanish, French)
  • Hard Zippered Carry Case

Uniden R4 vs. Valentine One Gen2 – comparison review from vortex

The best known and still most common speed measurement method is certainly using a radar trap. But there are also other measurement methods that are not carried out using radar. It is therefore worth finding out in advance to avoid disappointment with the scope of protection.

Because other measurement methods, such as low power radar (MRCD, MRCT, GATSO), lasers or passive measurements via ESO (single-sided sensor) or section control are now also frequently used in Europe. Some of these new measurement methods can be detected with good mobile radar detectors. With the passive methods, if they are used mobile, it becomes more difficult. That is why we offer our complete packages for perfect all-round protection.

Czech RepublicXXXX
Great BritainXX

The question whether radar detectors are legal cannot be answered uniformly in Europe. There are countries where the use of radar detectors is legal, while in other EU countries only the use of jammers is prohibited. Other countries only allow radar detectors that report fixed speed cameras via GPS, but not radar receivers.

Please check the legal situation for your country below (all information without any guarantee of correctness, please doublecheck your local legislation) or ask us if you have any question before you order a radar detector.

LandPOI radar
AustriaXGPS devices with a POI warner as an "announcement function" are permitted. Radar warning devices that can be used to influence or interfere with technical traffic monitoring equipment are prohibited. These may neither be attached to nor carried on motor vehicles. Violators face an administrative fine of up to 5,000 euros and the device will be confiscated.
BelgiumXFines or imprisonment from 15 days to three months. Doubling of the penalty in case of a repeat offence. The device is confiscated and destroyed. POI function is allowed.
Czech RepublicXOnly devices that make measurement impossible or interfere with it (interferers) are prohibited. Fine from 5,000 to 10,000 kroner (approx. 200-400 euros)
FinlandXXThe fine for a speeding offence is 100-115 Euros for a speeding offence of up to 20 km/h. For a minor traffic offence, the maximum fine is 50 euros. For serious speeding offences and for other traffic violations, the fine is determined according to the income of the driver Income.
FranceXXXFine. The device will be confiscated. If necessary, confiscation of the vehicle in the case of permanently installed devices. The POI function is permitted if it generally indicates danger spots at a sufficient distance. However, the clear and direct indication of radar measuring points is prohibited.
GermanyX75€ fine; 1 point; according to § 23 para. (1c) StVO any technical device designed to interfere with or indicate these measures.
GreeceXXFine. 30 days driving ban
HungaryXXFine. The device will be confiscated.
ItalyXXFine. Devices will be confiscated.
LithuaniaXFine. Only devices that actively interfere with the measurement are prohibited. The device will be confiscated.
LuxembourgXFine up to 5,000 euros or imprisonment from eight days to one year. The device is confiscated. POI function is allowed.
NetherlandsXXFine of 430 euros. The device will be confiscated. Navigation devices with POI function and speed camera apps are permitted.
NorwayXFine up to 10,000 kroner (approx. 1,000 euros). Equipment will be confiscated.
PolandXXFine. Equipment that is clearly not ready for use (e.g. packed) may be carried.
RomaniaRadar detectors are gererally Allowed. Legal regulation is currently being discussed.
SerbiaXXFine between 50 euros and 170 euros if used. In the event of an accident, up to 45 days imprisonment instead of a fine is possible. Navigation systems with POI function are allowed.
SloveniaXOnly devices that actively interfere with the measurement are prohibited. Fine
SpainXXFine. POI function is allowed.
SwedenXXFine. The device will be confiscated.
SwitzerlandXXFine or imprisonment. The device will be confiscated. Also GPS navigation devices that can warn of speed checks as part of their additional functions (POI function).

In case you are welcome to send us further or newer details or important information about your country!

If you have read how radar detectors work – then you know which radar warning options are possible and which are not. You also know that a 70%-90% protection from speed cameras and speeding fines can be achieved with a radar detector and can save a lot of money in the future.

How to define the best radar detector from the technical side? Most important features:

Radar detector devices (windshield and custom install radar detectors) offer depending upon price range the following most important technical differences to consider:

  • Radar detection performance and sensitivity (to check: radar antenna sensitivity & sensor size)
  • More precise radar frequency setting for more accurate results (to check: frequency setting options)
  • Low Power Radar Reception of latest generation (to check: MRCD MRCT GATSO detection)
  • False alarm filters such as radar based assistance systems in vehicles (to check: filter options/false alert performance)
  • GPS technology for speed dependent alarms and fixed speed cameras (to check: GPS options and POI Database)
  • Laser detection – is 360° laser detection on board? (read: why laser can not be detected as good as radar)
  • Radar detector reliability, support & updates (check: how good is the product support and POI Database)

What are currently the best radar detectors devices for Europe?

In order to give the right answer please check our big overview and radar detectors compare before buy a radar detector. Don´t hesitate also to contact us if you need help. For a perfect experience please send us Details of your car, model, year and our team will send a perfect equipment and configuration proposal and will explain in order to get the perfect protection you wish – for free.

The biggest difference between radar and laser: laser, unlike radar, is not permanently emitted and therefore cannot be detected in time. The automated laser measuring systems have a working range, i.e. a distance between 25-75m from which they become active and can only be detected then. In addition a laser measurement usually takes a fraction of a second. And last but not least: the laser beam itself is very thin and can only be detected if it hits the sensor to be detected.

These are all factors why even the best portable radar detectors usually cannot help optimally.

Laser Jammer: That’s why there are the installation laser systems. Not only do they detect lasers much more effectively, but they are also able to stop laser measurement. See also our radar detectors installation videos on our or our radar-shop youtube channel.



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