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Whistler XTR-438 Laser Radar Detector High Performance 360 Degree Alerts No Dead Zones

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Technical Details:

Brand Whistler
Product Dimensions 10 x 6.7 x 1.8 inches
Manufacturer WHISTLER
Manufacturer Part# XTR-438NUTR
  • 360 Maxx Coverage so there are no dead zones to worry about
  • G-2 Detection, the best in anti-RDD discrete protection
  • Selectable Vehicle Battery Saver. Setting Saver stores your preferred selections.
  • Stay Alert, TFSR - Traffic Flow Signal Rejection. Total Band Protection.


Red Whistler Xtr Radar Detector Stealthy and Alert The Whistler Radar Detector Red text display is so easy to see thanks to the brilliant readout. It is so easy to use thanks to the intuitive controls and the Whistler is so reliable and effective it offers both stealth and power. This wide-ranging detector does just about everything you could ask in a radar detector. The Whistler detector provides 360-degree alerts for both radar and laser signals as well as POP mode alerts and Safety Warning System alerts. It's also customizable. You can change your alert tones, vehicle battery saver mode, quiet modes and so much more and it does all this while cloaking you completely. This versatile and powerful Red Whistler Xtr Radar Detector has so many premium features you cannot possibly be disappointed. This detector has three separate city modes and a highway mode for keeping those false alerts to a minimum. The detector also offers Dim/Dark and Quiet/Auto Quiet modes manage the visual and audio displays to your preference. The Alert Periscopes and Alert Priority features provide even more security, keeping your attention on the road where it should be. The total band protection gives you peace of mind, no matter what comes your way. If you're looking for the best in protection and good value, the Whistler XTR is the way to go. No radar detector can eliminate the chance of a speeding violation. Excessive speeding is unsafe and unlawful. Radar and laser speed detection offer reasonable warning and opportunity to avoid tickets. It is important to avoid excessive speed, understand the capability of the radar detector, and properly place the unit in the vehicle. Many states (such as Minnesota and California) have specific laws prohibiting or limiting the use of any devices attached to the windshield. Investigate any legal restrictions in your state before installing a radar detector.

WHISTLER XTR-438 Laser Radar Detector

Laser radar detectors are legal for passenger vehicles in every state except Virginia and Washington, D.C. Radar receivers are prohibited in commercial vehicles over 10,000 lbs. Whistler laser radar detectors receive laser guns that operate at a laser wavelength of 905+/50nm.

WHISTLER XTR-438 Laser Radar Detector
  • NEW AND IMPROVED RED OLED TEXT DISPLAY provides better contrast, brightness and color. Shows alerts detected, engaged modes and digital signal strength in text format (i.e. HIGHWAY or Ka9).
  • TRAFFIC FLOW SIGNAL REJECTION (TFSR) helps eliminate alerts from radar based traffic flow sensors
  • POP™ MODE DETECTION advanced speed detection capability responds to brief bursts of radar
  • ALERT PERISCOPES LED’s on top of the unit provide additional visual alert
  • SELECTABLE TONE ALERTS allow choice of tones providing distinct audible alerts for bands received
  • TOTAL BAND™ PROTECTION X band - K band - SuperWideBand
  • Ka - Laser, the only 4 bands that are used for speed measurement
  • 360° MAXX COVERAGE detects from front, sides, and rear
  • 3 CITY MODES (City, City 1, City 2) reduce the annoyance of false alerts
  • HIGH GAIN LENS provides increased field of view which means better range
  • STAY ALERT® Whistler’s exclusive feature that tests your alertness on long trips
  • DIM / DARK reduces the illumination of the display. When in dark mode, the display is turned off during an alert then remains off for 20 more seconds before returning to its dimmer setting.
  • QUIET / AUTO QUIET silences audio alerts
  • ALERT PRIORITY displays most important signal when more than one is detected
  • SETTING SAVER saves personalized settings when unit is turned off
  • SELECTABLE VEHICLE BATTERY SAVER allows you to customize the automatic shut down feature
  • SAFETY WARNING SYSTEM™ keeps you informed of highway safety where transmitters are located
  • VG-2 DETECTION when engaged, alerts to VG-2 when detected

WHISTLER XTR-438 Laser Radar Detector WHISTLER XTR-438 Laser Radar Detector WHISTLER XTR-438 Laser Radar Detector WHISTLER XTR-438 Laser Radar Detector WHISTLER XTR-438 Laser Radar Detector WHISTLER XTR-438 Laser Radar Detector
What's in the box
WHISTLER XTR-438 Laser Radar Detector
  1. WHISTLER XTR-438 Laser Radar Detector
  2. Windshield Bracket Kit
  3. Power Cord
  4. User Manual

Warranty and Notice

Covered by Manufacturer's Warranty

Click Here for California Proposition 65 Warning.

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Return for refund within:30 days

Return for replacement within:30 days