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The pros at Beltronics know radar technology is ever-improving, so they design their detectors to give you the protection you're looking for. The Pro RX55 boasts the sensitivity required for truly impressive performance. The digital voice or audio tone alerts will give you plenty of warning when X, K, Ku, and Ka radar is in use. Worried about laser speed detectors? Beltronics' Total Tracker Laser provides outstanding coverage. "POP Alert" detection provides quick response to the latest Ka speed detection devices.

Shadow Technology also renders you immune to VG-2 radar detector detectors, while four sensitivity modes (3 city, 1 highway) provide maximum protection with minimal false alarms. You can program 7 different parameters to customize the Pro RX55 for your own use.

Sorry, but we cannot ship radar detectors to Virginia or the District of Columbia.

Product Highlights:

  • digital voice and audio tone alerts for radar, laser, SWS, and VG2
  • invisible to VG2 radar detector detectors
  • 360° laser protection
  • alerts you to the use of new POP radar
  • LED text display
  • voltage meter display
  • 3 city and 1 highway modes
  • dimensions: 2-3/4"W x 1-1/8"H x 4-3/4"D
  • warranty: 1 year
  • Our 60-day money-back guarantee

Beltronics Pro RX55 Reviews

Average Customer Review:

2 Reviews


Written by: sylvia from Lake Charles, LA on February 18, 2008

Crutchfield Customer Review (What's this?)

Its great everything a radar dector should be and more. Great features......



Great Radar Detector

Written by: Neto from Albuquerque, NM on January 24, 2008

Crutchfield Customer Review (What's this?)

This is my first radar detector purchase and I really like it. I really like the fact that it is truly plug and play and it is user-friendly. I have yet to use its programmable features and I am already satisfied with my purchase.



Hands-on research

What's in the box?

Download owner's manual

  • Radar detector
  • Cigarette lighter adapter with 8' coiled cord (has installed 2A fuse)
  • Windshield mount with 2 suction cups
  • 2 Spare suction cups
  • 6 Self-adhesive rubber feet
  • Vinyl carrying case
  • 1 Silica gel packet
  • Owner's Manual

Features and Specs

X Band Radar Yes
K Band Radar Yes
KA Photo Radar Yes
KA Wideband Radar Yes
Laser Front/Rear
Pulse Warning Yes
VG-2 Protection Yes
Display & Alerts
Dimmer Touch Key
Dark Mode Yes
Visual Alerts Yes
Audible Alerts Yes
Mute Yes
Earphone Jack Yes
Visor Clip Optional
Straight Cord No
Coiled Cord Yes
Case Included Vinyl
Battery Powered No
Parts Warranty 1 Year
Labor Warranty 1 Year

Product Research


Detection Capability: The Bel Pro RX55 includes full X, K, SuperWide Ka, Ku and Safety Warning System radar capability, front and rear laser detection, and digital signal processing for superior range and fewer false alarms. You can program the unit to enable all bands at once or you can select one or more bands to turn off (once you have determined there are no traffic radar units using the disabled bands in your area).

Pop Mode Detection: The RX55 includes protection against "Pop Mode" radar, a relatively new feature for radar gun manufacturers. It works by transmitting an extremely short burst, within the allocated band, to identify speeding vehicles in traffic. Once the target is identified, or "popped", the gun is then turned to its normal operating mode to provide a vehicle tracking history.

Display: The RX55's alphanumeric display consists of 280 individual LEDs to provide an intuitive ultra-bright display of signal strength and text messages. When radar is detected, the unit displays the band (X, K or Ka), and a precise bar graph of the signal strength. When the RX55 detects laser, the display will show "LASER".

Alerts: This unit features three methods of alerting you that the detector has received a signal: Audible alerts, Visual alerts, and Voice alerts.

Audible Alerts: The RX55 uses a Geiger-counter-like sound to indicate the signal strength and type of radar signal being encountered. When you encounter radar, a distinct audible alert will sound and occur faster as the signal gets stronger. When the signal is very strong, the audible alerts will blend into a solid tone. Each band has a distinct tone for easy identification.

Brightness Modes: The RX55 has three display brightness settings, plus a Dark Mode. Each press of the Brightness button cycles through Maximum, Medium, Minimum, and Dark. In the Dark Mode, the power on indication changes to a dim AD, HD or CD (AutoScan Dark, Highway Dark, City Dark), and only audible alerts are used when the RX55 detects signals.

Programming: There are 7 user-selectable options to allow you to customize the RX55 to your own preferences. The programmable categories include Pilot (Power-on Indicator), Voice Alerts, Power-on Sequence, AutoMute, City Mode Sensitivity, SWS detection, and VG2 detection.

Pilot (Power-on Indicator): The Power-on indicator can be a full word ("Highway") or a single letter ("H"). When the detector is in the Dark Mode, the indicator will be two letters (HD--highway/dark).

Vehicle Voltage: The voltage indicator will provide a digital readout of the vehicle's battery voltage. When the voltage falls below 10.5 volts or rises above 16 volts, the detector will give you a low voltage or high voltage warning and sound an audible alert.

Voice Alerts: When the Voice Alerts are activated, all radar, laser and Safety Warning System alerts (when programmed on) will be accompanied by a digital voice. When Voice Alerts are off, only the audio tones will be heard during an alert or SWS message. The RX55 has a total of 64 digital voice messages.

Power-on Sequence: When the RX55 is first turned on, the standard power-on sequence includes a series of displays followed by a brief X-band alert. If any bands have been disabled, a double X-band alert and corresponding message will alert you that one or more bands have been turned off. If you desire a quicker power-on sequence, you can switch to "Fast Power-On" which provides only a single X-band alert if all bands are enabled, and a double X-band alert and a corresponding message if any bands have been turned off.  

Signal Strength Meter: The RX55's standard bar-graph signal strength meter only displays information on a single radar signal. If there are multiple signals present, the detector's internal computer determines which is the most important threat to show on the bar-graph meter.

AutoMute: With the AutoMute feature on, audio alerts will initially be at the volume you set, but after a few seconds, the RX55 will automatically reduce the volume level, to keep you informed, but not annoyed. With AutoMute off, audio alerts will remain at the volume you set for the duration of the radar encounter.

City Mode Sensitivity: The detector's City Mode significantly reduces X-band sensitivity to reduce annoyance from X-band intrusion alarms and motion sensors. In addition to the Standard City Mode, you can further reduce X-band sensitivity by selecting "City Mode/Low X". If you are absolutely certain there are no X-band traffic radar units in the area, you can select "City Mode/No X" and the detector will not respond to any X-band signals.

Safety Warning System: The Safety Warning System, or SWS, uses a modified K-band radar signal to alert you of upcoming highway construction, road hazards, weather-related hazards, travel and convenience information and emergency/slow-moving vehicles. The SWS system has 64 possible text messages that can be displayed on the RX55.

VG-2 Alerts: The detector is undetectable by VG-2 detection devices, and will alert you when such a device is in use near your vehicle. During the alert, the unit continues to detect other signals.

Earphone Jack: A 3.5mm mini-jack is provided on the side of the unit for plugging in an earphone in environments with high ambient noise levels. When an earphone is connected, the internal speaker is disconnected.

Mounting: You will get optimum performance from the detector if you mount it at a point approximately in the center of the vehicle, as low as possible on the front windshield without obstructing the view of the road to the front or rear. The detector can be mounted in two ways:

  • Windshield Mount: The supplied windshield mount adheres the detector to the windshield with two suction cups. The angle can be adjusted for best visibility.
  • Dashboard Mount: Using the supplied self-adhesive pads, you can attach the detector to the dashboard.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.