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Beltronics STi Magnum Radar and Laser Detector (Certified Refurbished)

  • Exclusive TotalShield Technology
  • DSP: Digital Signal Processing
  • Easy-To-Use Options and Controls
  • Clear Digital Voice Alerts
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Beltronics STi Magnum (Certified Refurbished)

Radar and Laser Detector 

BELTRONICS is the performance leader in radar and laser technology. Our industry leading dual LNA (low noise amplifier) microwave receiver delivers the longest possible warning on all radar bands, including the latest "POP" mode threats.


Exclusive TotalShield Technology
Our TotalShield technology makes the STi MAGNUM completely invisible against any type of radar detector detector. Not only will it keep you unseen by the current VG2 and Spectre, it will be completely undetectable by any future threats as well.

DSP: Digital Signal Processing
Our patented AutoScan™ feature continuously analyzes all incoming signals and automatically rejects unwanted false alarms. This gives you, the driving enthusiast, the perfect balance of long-range detector performance without those annoying false alarms.

Next Generation of Laser Protection
Multiple laser sensors, strategically positioned in the case, continually search for laser gun signals. Maximum range, including superior off-axis protection, is standard.

Easy-To-Use Options and Controls
The STi is simple to use and operate. Preset at the factory, the STi is optimized for short or long trips in North America. However, you can customize up to 9 features to meet your specific driving style.

Clear Digital Voice Alerts
The STis easy to understand digital voice alerts keep you informed without taking your eyes off the road. For extremely noisy environments, ask about our amplified speaker option.

High Definition Text Display
Using the brightest text display possible, the STi is easy to read from any angle. Choose from three different meter modes.

Mute and AutoMute
The STi comes with BELTRONICS AutoMute™ feature, which automatically reduces the volume level during an alert. Or, simply press the large front-mounted Mute button on the detector or SmartPlug (included) during an alert to instantly quiet the audio.

City Mode Filtering
Choose from two levels of City mode filters, including City Standard and City NoX for quiet operation in and around town.

Brightness Control with Full Dark Mode
The STi has four levels of brightness, including an auto mode which automatically changes the brightness based on the ambient light in the vehicle. You can also select full dark mode and use the power-on and alert indicators on the SmartPlug for complete stealth operation.

Comes Fully Equipped
The STi MAGNUM comes complete with a quick release windshield mount with suction cups, our unique coiled SmartPlug lighter adapter with convenient mute button, alert lamp and power-on indicator.

Designed in USA - Made in Canada

Power Requirement

  • 12VDC, Negative Ground
  • Coiled SmartPlug with Mute Button
  • or Optional Direct-wire SmartPlug with Mute Button

Operating Bands

  • X-band: 10.525 GHz ± 25 MHz
  • K-band: 24.150 GHz ± 100 MHz
  • Ka-band: 34.700 GHz ± 1300 MHz
  • Laser: 904nm, ± 13nm

Radar Receiver

  • Dual-LNA Microwave Receiver
  • Superheterodyne, Varactor Tuned VCO
  • Scanning Frequency Discriminator
  • Digital Signal Processing (DSP)

Programmable Features


  • Power-On Indication
  • Alert Lamp
  • Voice Alerts
  • Power-On Sequence
  • Signal Strength Meter
  • AutoMute
  • Brightness
  • Bands

Sensitivity Control

  • Highway
  • AutoScan
  • City / City NoX

Laser Detection

  • Quantum Limited Video Receiver
  • (5) Optical Laser Sensors

Display Type

  • 280 LED Alphanumeric
  • Bar Graph, Threat Display, Tech Display
  • Automatic, plus 4 levels of fixed brightness including full Dark

Additional Patented Technology

  • Auto Calibration Circuitry
  • Mute / AutoMute / SmartMute
  • TotalShield Technology

Dimensions (Inches)

  • 1.25(H) x 2.75(W) x 4.75(L)

Additional Info

Name Beltronics STi Magnum Radar and Laser Detector (Certified Refurbished)
Manufacturer No
Manufacturer's Warranty 6 Month Manufacture's Warranty
Manufacture's Warranty 2 N/A
upc 739189816583
Manufacturer Sku 0150000-ERFB