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K40 RD950 Radar and Laser Detector

  • Traffic Sensor Filter 
  • Fully Programmable Radar/Laser Alert Options
  • Filter – Choose between three sensitivity options based on where and how you drive
  • Ticket Free Guarantee

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K40 RD950

Radar and Laser Detector

  • The RD950 is the easiest to own and operate K40 radar and laser detector that offers superior – and guaranteed – protection against speeding tickets.
  • Just plug it in…the RD950 comes pre-tested and pre-set from the factory and includes everything you need to be instantly protected with maximum range and accuracy.
  • If you desire more control for where and how you drive, 10 customizable menu options let you program the RD950 to meet your specific needs and provide the most enjoyable driving experience possible.


  • K-Band Filter – An advanced, automatic filtering technology that intelligently recognizes and rejects radar-based safety features (such as adaptive cruise control or blind spot assist) in other vehicles so you can remain focused on real radar threats.

  • Traffic Sensor Filter – The RD950 will reject alerts from traffic flow sensors usually encountered during highway driving.
  • Flexible Mute Options – Offers multiple ways to silence alerts, including automatic volume reduction.
  • Dim – Adjust the intensity of the display depending on the time of day or your visual preference.
  • Fully Programmable Radar/Laser Alert Options – 10 customizable menu settings allow you to program the RD950 to fit you and your driving environment.
  • Filter – Choose between three sensitivity options based on where and how you drive.
  • Accessories Included – Everything you need to install the RD950 is included: Fully-adjustable windshield mounting bracket with suction cups, a standard coiled power cord with 12V outlet adapter, and a straight power cord for a custom hardwired installation.
  • Voice or Tone plus Digital Display – Unique audible and visual warnings alert you to the specific police radar band targeting your vehicle as well as provide a “geiger” audio alert that accelerates as you near the threat.
  • Vibrant Dot Matrix Display – Great looking and easy to read, day or night. Easily adjust the brightness to suit your driving environment.


Detects every North American approved police radar frequency and radar gun:

Operating Frequencies

  • 10.500 – 10.550 GHz (X-Band)
  • 24.050 – 24.250 GHz (K-Band)
  • 33.400 – 36.000 GHz (Ka-Band)
  • 830 – 945 nanometers (Laser)

Power Requirements

  • 11.5 – 16.0 Volts DC negative ground
  • 170 mA typical standby


  • 4.572 in. L x 2.728 in. W x 1.124 in. H


  • 4.7 oz.

Three Filter Settings:
Level/Mode Sensitivity

  1. Highway Detects all types of North American approved police radar or laser signals at full sensitivity. Recommended Use: For highway travel or in any area in which you are unfamiliar with the types of radar used.
  2. City The X-Band sensitivity is reduced. This is because it is the most common source of non-police radar signals. K, Ka, and Laser will remain at full sensitivity. Recommended Use: When travelling in an urban area with minimal non-police radar signals.
  3. Filter Eliminates X-Band detection completely. Reduces K and Ka-Band sensitivity. Laser detection will remain at full sensitivity. Recommended Use: When travelling in a congested traffic area with a high concentration of non-police radar signals.

Programmable Features:

  • Voice Type – Male / Female
  • Audible Voice – Voice On / Voice Off
  • Wake Up – Wake Up Long (Full) / Wake Up Short (abbreviated start-up sequence)
  • Traffic Sensor Filter – On / Off
  • Automute – On / Off
  • X-Band – On / Off
  • K-Band – On / Off
  • Ka-Band – On / Off
  • Laser – On / Off
  • Factory Reset

RDD Guard

  • Radar Detector Detector shielded

Radar Receiver Type

  • DSP Datadyne Technologies

Display Type

  • Full Dot Matrix Text Display

Signal Strength Indicators

  • Audible Geiger and visual strength indications

Drive Ticket Free

Get a ticket, K40 pays for it. Period.* Simply send them a copy of the radar or laser speeding ticket, your proof of payment of the ticket, and your receipt for your K40 purchase.**
K40 started offering this guarantee in 1985 and they still stand by it today!

100% Ownership Guarantee

  • 100% Performance Guarantee – If your K40 Radar Detector or Laser Defuser does not outperform any other radar detector you’ve owned, return it within 30 days for a full product credit.
  • 100% One-Year Quality Guarantee – K40 will repair or replace any defective product for one full year from date of purchase.
  • 100% Theft Guarantee – If your custom installed radar detector is ever stolen, they'll replace it.***

To ensure you’re covered by all K40 guarantees, register your product today.


*Ticket-Free Guarantee not valid for tickets in school or construction zones. Incurred with a DUI or DWI violation, or for tickets received outside the U.S. and Canada.
**Installed radar detector systems must include the purchase of at least one Laser Defuser in order to be covered for any laser speeding ticket reimbursement.
***Theft claim must include complete copy of police report indicating details of loss to due theft, proof of purchase from an authorized K40 dealer, and proof of insurance reimbursement if applicable. This guarantee excludes portable radar detectors.

Product subject to one or more of the following U.S. Patents:
Other patents pending.

Additional Info

Name K40 RD950 Radar and Laser Detector
Manufacturer K40
Manufacturer's Warranty K401YEAR
Manufacture's Warranty 2 N/A
upc 739238501002
Manufacturer Sku RD950