---
product_id: 1170673
title: "Whistler XTR-540 Cordless Radar Detector"
brand: "whistler"
price: "R$3447"
currency: BRL
in_stock: true
category: "Electronics"
url: https://www.desertcart.com.br/products/1170673-whistler-xtr-540-cordless-radar-detector
store_origin: BR
region: Brazil
---

# Whistler XTR-540 Cordless Radar Detector

**Brand:** whistler
**Price:** R$3447
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Whistler XTR-540 Cordless Radar Detector by whistler
- **How much does it cost?** R$3447 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/1170673-whistler-xtr-540-cordless-radar-detector)

## Best For

- whistler enthusiasts

## Why This Product

- Trusted whistler brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Amazon.com Product Description Whistler's XTR-540 laser/radar detector gives you full band protection from radar signals, 360-degree laser detection, Whistler's patented VG-2 cloaking technology, and plenty more. The brilliant blue text display, along with tone alerts and Whistler's unique alert periscopes, mean you'll never miss an alert. Competitive features and competitive pricing.     Competitive features and competitive pricing. Click to enlarge.    Battery Powered The unit can provide approximately 15 hours of laser/radar detection with three rechargeable AA Ni-MH batteries, or you can plug it into your vehicle's cigarette lighter adapter (this will recharge the batteries). Blue LCD Text Display The XTR-540's brilliant display provides distinct visual confirmation of signals detected, signal strength, and indicates engaged modes of operation. Patented POP Mode Detection There are new guns out there that operate just like the instant-on guns of the past but with a very tough new twist--POP mode! This new gun is a normal K and Ka band radar gun detectable by most radar detectors made in the past 30 years until it's in POP mode. When the gun is in POP Mode and activated, a brief burst of energy, less than 1/15 of a second, is transmitted and the vehicle's speed is quickly acquired. A detector without POP Mode detection capability cannot respond to this brief transmission, but the XTR-540 can. Low Profile Alert Periscopes Whistler's Low Profile Alert Periscopes provide an added attention getting visual alert. The two extra LEDs flash on and off when the unit alarms to provide a unique visual alert. 3 City Modes/Highway Mode Highway mode provides full audio and visual warning of laser/radar systems while maintaining full sensitivity. Highway mode is the default setting of all Whistler's laser/radar detectors. City mode helps reduce the annoyance of automatic door openers and burglar alarm alerts by providing an initial alert (same distance as Highway Mode) then remaining quiet unless the signal strength becomes very strong. When the signal increases the unit will alert briefly to notify you of the change in signal strength.    Brilliant blue LCD text display.      View features diagram. Click to enlarge.    Stay Alert The Stay Alert feature is designed to test a driver's alertness. Within 30 to 60 seconds after the feature is engaged an alert is sounded; to show alertness, the driver must press the volume, city or the mute button within 3-5 seconds. If a button is pressed within 3-5 seconds, the cycle is repeated. If a button was not pressed within 3-5 seconds the unit alarms at full volume and the display shows an unique visual alert. Quiet/Auto Quiet Modes Pressing QUIET before a signal is detected engages Auto Quiet Mode, which automatically reduces the audio level after the initial warning to a low audio level setting. Pressing QUIET during a radar/laser encounter silences audio alerts, while allowing visual alerts to keep you informed. Alert Priority When two or more signals are received at the same time, the alert priority is: Laser, VG-2, Speed Radar, Safety Radar. Example: If X band is alerting, then suddenly a VG-2 signal is detected, the VG-2 warning will override the X band alert. Vehicle Battery Saver Mode The Vehicle Battery Saver Mode automatically shuts off your detector within 3 hours if you forget to turn it off. The timer is reset if the detector is turned off, unplugged or any button is pressed before the 6 hours have expired. The detector will alert you with an audible and visual warning before it shuts off. Safety Warning System--SWS This relatively new radar is not for speed detection at all, it is used to keep you informed of highway safety. Transmitters are installed and programmed (for example: in emergency vehicles) to make you aware of possible situations that may require your attention, such as: ambulance vehicles that are moving or stationary, road hazards ahead, road construction delays or detours, etc. VG-2 Detection Mode The VG-2, also known as a "radar detector detector," is a special receiver used by police to detect signals radiated by a radar detector. The XTR-540 alerts you its presence, and thanks to Whistler's patented VG-2 cloaking technology provides undetectability. What's in the Box Whistler XTR-540 Laser/Radar Detector, Windshield Mount, Power Cord, Three AA Ni-MH Batteries, User's Manual

## Features

- Total Band protection with selectable bands
- Low-profile alert periscopes
- Radar Signature ID (RSID)
- Cordless platform
- Intense blue text display
- Battery Operated
- 72 Point Digital Compass
- Internal Battery Charger
- Battery Voltage Gauge
- 360° Maxx Coverage

## Images

![Whistler XTR-540 Cordless Radar Detector - Image 1](http://ecx.images-amazon.com/images/I/41ftAvKNSvL.jpg)

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**Shop now:** [https://www.desertcart.com.br/products/1170673-whistler-xtr-540-cordless-radar-detector](https://www.desertcart.com.br/products/1170673-whistler-xtr-540-cordless-radar-detector)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-03-04*