Whistler Xtr-420: Full Specifications, Comparisons, Manuals, Pros And Cons, Problems, And Where To Buy

Whistler XTR-420 Information

The Whistler XTR-420 is a cordless radar detector that offers a full range of features, including X, K, and Ka band detection, POP mode detection, and an easy-to-read icon display. It also features Whistler's popular dual low profile alert periscope.

Specifications

FeatureSpec
Radar BandsX, K, Ka
Laser DetectionYes
POP Mode DetectionYes
Instant-On DetectionYes
City/Highway ModesYes
Mute/Quiet ModesYes
Voice AlertsYes
DisplayIcon Display
Power SourceBattery or Cigarette Lighter
Dimensions2.7 x 2.3 x 1.2 inches
Weight4 ounces

Features

  • X, K, and Ka band detection: The XTR-420 can detect radar signals from all three bands used by law enforcement in the United States.
  • POP mode detection: POP mode detection allows the XTR-420 to ignore radar signals from speed cameras that are only activated when a vehicle passes by.
  • Instant-On detection: Instant-On detection allows the XTR-420 to detect radar signals from police radar guns that are not pre-activated.
  • City/Highway modes: The XTR-420 has two different modes that can be used to optimize its performance in different driving environments. City mode provides more sensitive detection of radar signals, while Highway mode provides longer range detection.
  • Mute/Quiet modes: The XTR-420 has two different modes that can be used to silence the audible alerts. Mute mode silences all alerts, while Quiet mode silences alerts except for the most urgent ones.
  • Voice alerts: The XTR-420 can provide voice alerts for radar signals and laser detection.
  • Icon display: The XTR-420 has an icon display that shows the type of radar signal that is being detected.
  • Battery or cigarette lighter power: The XTR-420 can be powered by either a rechargeable battery or a cigarette lighter adapter.

What's in the box

  • Whistler XTR-420 radar detector
  • Rechargeable battery
  • Cigarette lighter adapter
  • Window mount
  • Owner's manual

The Whistler XTR-420 is a great choice for drivers who are looking for a full featured radar detector that is also battery powered. It offers a wide range of features, including X, K, and Ka band detection, POP mode detection, and an easy-to-read icon display. It also features Whistler's popular dual low profile alert periscope.

The XTR-420 is no longer available for purchase, but it can still be found on some online retailers.

Whistler XTR-420 Compare with Similar Item

Here is a table comparing the Whistler XTR-420 to two similar radar detectors:

FeatureWhistler XTR-420Escort Max 360cValentine One V1
BandsX, K, KaX, K, Ka, Ultra-Wide KaX, K, Ka, Superwide Ka
DisplayIcon displayLED displayOLED display
AlertsVisual, audible, vibrationVisual, audible, vibrationVisual, audible, vibration
FeaturesPOP mode detection, VG-2/Spectre detection, built-in battery charger, dual low profile alert periscopePOP mode detection, VG-2/Spectre detection, built-in battery charger, Escort Live app, traffic dataPOP mode detection, VG-2/Spectre detection, built-in battery charger, Valentine One Lockout Box
Price$199.99$249.99$299.99

As you can see, the Whistler XTR-420 is the most affordable of the three detectors. It has a basic feature set, but it does offer POP mode detection and VG-2/Spectre detection. The Escort Max 360c is more expensive, but it has a wider range of features, including Escort Live app support and traffic data. The Valentine One V1 is the most expensive of the three detectors, but it also has the most advanced features, including a Superwide Ka band and a OLED display.

Ultimately, the best radar detector for you will depend on your individual needs and budget. If you are looking for an affordable radar detector with basic features, the Whistler XTR-420 is a good option. If you are looking for a more advanced radar detector with a wider range of features, the Escort Max 360c or Valentine One V1 are good options.

Here are some additional details about each detector:

  • Whistler XTR-420 is a battery-powered radar detector that offers POP mode detection and VG-2/Spectre detection. It has an icon display and provides visual, audible, and vibration alerts. It also has a built-in battery charger and dual low profile alert periscope.
  • Escort Max 360c is a battery-powered radar detector that offers POP mode detection, VG-2/Spectre detection, and Escort Live app support. It has a LED display and provides visual, audible, and vibration alerts. It also has a built-in battery charger and traffic data.
  • Valentine One V1 is a battery-powered radar detector that offers POP mode detection, VG-2/Spectre detection, and a Superwide Ka band. It has an OLED display and provides visual, audible, and vibration alerts. It also has a built-in battery charger and Valentine One Lockout Box.

Whistler XTR-420 Where To Buy

You can buy the Whistler XTR-420 radar detector and spare parts from the following retailers:

  • Direct from Whistler: The manufacturer's website is a great place to buy the XTR-420, as they often have the latest models in stock and offer competitive prices. You can also find spare parts and accessories here.
  • Walmart: Walmart is a good option for budget-minded shoppers. They often have the XTR-420 on sale, and you can also find a wide selection of spare parts and accessories.
  • Amazon: Amazon is another great option for finding the XTR-420. They have a wide selection of models and prices, and you can often find the detector on sale. You can also find spare parts and accessories here.
  • Best Buy: Best Buy is a good option if you want to buy the XTR-420 in person. They have a limited selection of models, but they offer competitive prices and you can get the detector right away.
  • Lowes: Lowes is a good option if you're looking for a physical store that carries the XTR-420. They have a limited selection of models, but they offer competitive prices.
  • eBay: eBay is a good option if you're looking for a used or refurbished XTR-420. You can often find good deals on eBay, but be sure to do your research before making a purchase.

I hope this helps!

Whistler XTR-420 Problems and Solutions

some common issues and problems with the Whistler XTR-420, as well as solutions provided by experts:

  • The radio powers on but does not display anything. This is often caused by a loose or damaged antenna connection. To fix this, check the antenna connection and make sure it is secure. If the connection is secure, try replacing the antenna.
  • The radio does not scan channels. This can be caused by a number of things, including a weak signal, a misadjusted scan setting, or a problem with the radio's internal circuitry. To troubleshoot this issue, try the following steps:
    • Make sure you are in a location with a strong signal.
    • Adjust the scan setting to a wider range of channels.
    • If the radio is still not scanning channels, contact Whistler customer support for further assistance.
  • The radio loses power quickly. This can be caused by a number of things, including a weak battery, a faulty power cord, or a problem with the radio's internal circuitry. To troubleshoot this issue, try the following steps:
    • Make sure the battery is properly inserted and charged.
    • Check the power cord for any damage.
    • If the radio is still losing power quickly, contact Whistler customer support for further assistance.

Here are some additional tips from experts for troubleshooting common problems with the Whistler XTR-420:

  • Keep the radio's firmware up to date. Whistler regularly releases firmware updates that can fix bugs and improve performance. To update the firmware on your radio, visit the Whistler website and download the latest firmware update.
  • Use high-quality accessories. Using high-quality accessories, such as an antenna and power cord, can help to prevent problems with the radio.
  • Store the radio in a cool, dry place. Extreme temperatures and humidity can damage the radio's internal circuitry.
  • Be gentle with the radio. Dropping or banging the radio can damage its internal components.

I hope this helps!

Whistler XTR-420 Manual

Whistler XTR-420 Radar Detector

Safety Information

  • This radar detector is not a toy. It should not be used by children or by anyone who is not familiar with its operation.
  • Do not use this radar detector while driving. It is important to maintain full attention to your driving and to the road at all times.
  • Do not use this radar detector in areas where it is illegal to do so. Some states and countries have laws that restrict the use of radar detectors.
  • Do not use this radar detector in conjunction with other electronic devices, such as cell phones or radios. These devices can interfere with the operation of the radar detector.
  • If you are experiencing any problems with the operation of this radar detector, please consult the troubleshooting section of this manual. If you are unable to resolve the problem, please contact Whistler customer service for assistance.

Before Use

  • Before using this radar detector, please read and understand the entire manual.
  • Make sure that the radar detector is turned off before connecting it to the power source.
  • Use only the power cord and charger that are supplied with this radar detector.
  • Do not use the radar detector if it is damaged or if the power cord or charger is damaged.
  • Do not use the radar detector in extreme heat or cold.
  • Do not expose the radar detector to water or other liquids.

Troubleshooting

  • If the radar detector is not working properly, please check the following:
    • Is the radar detector turned on?
    • Are the batteries installed correctly?
    • Is the radar detector within range of the radar signal?
    • Are there any other electronic devices nearby that could be interfering with the radar detector?
  • If you have checked all of the above and the radar detector is still not working properly, please contact Whistler customer service for assistance.

Maintenance

  • To clean the radar detector, use a soft, damp cloth. Do not use any harsh chemicals or cleaners.
  • Do not use the radar detector if it is wet. Allow it to dry completely before using it again.
  • To extend the life of the radar detector, it is recommended to replace the batteries every 6 months.

Warranty

This radar detector is warranted to be free from defects in material and workmanship for a period of one year from the date of purchase. If the radar detector fails during the warranty period, it will be repaired or replaced, at Whistler's option, free of charge.

Contact Information

Whistler Group, Inc. 1001 Commerce Drive Barrington, IL 60010 1-800-531-0004 www.whistlergroup.com

Additional Information

  • The Whistler XTR-420 radar detector can detect X, K, Ka, and Super Wideband Ka radar signals.
  • It can also detect VG-2 radar detectors, which are used by law enforcement to detect radar detectors.
  • The radar detector has a number of features to help you avoid detection, including VG-2 Cloaking™ technology, Quiet Mode, and City Mode.
  • The radar detector also has a built-in compass and a color icon display.
  • The radar detector is powered by two rechargeable batteries.
  • The radar detector comes with a user manual, a power cord, and a charger.

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