K40 RL360i Radar Detector

K40LOGOImagine a driving protection system so integral to your vehicle and driving experience that to the casual observer, it looks and operates like it was installed at the factory. That’s the legacy the RL360i continues to deliver upon ever since we patented the dual radar receiver system design in 1986.

The RL360i offers the highest radar detection performance available in a discreet, custom installed system. With separate front and rear receivers, you’ll drive with full confidence in knowing which direction a police radar threat exists.

Performance of a radar detector goes well beyond identifying threats. Functionality and convenience are of paramount importance. The RL360i enhances your driving pleasure with features like an automatic K-Band filter and Mark to Mute option that reject or silence annoying false alerts, as well as Mark to Alert option to notify you of important locations – such as a red light camera – where increased observation vigilance is desired.

Want the ultimate threat protection system? Simply add up to four Laser Defuser g5 laser jammers and you’ll have created a stealth mode of near invincibility.



OEM-like Visual and Auditory Alerts — The RL360i retains the original factory appearance of your vehicle’s interior by strategically hiding two miniature alert LEDs in the instrument cluster and a audio speaker under the dash. It’s a completely undetectable protection system until the RL360i warns you based on your preferred settings. Choose from five customizable LED brightness settings, voice alerts, tone alerts, or muted audio.

System Control Options:

Wireless Remote Control (standard) —
The key fob sized wireless remote lets you control everything from the brightness of the alert LEDs to the system’s mute settings and GPS features. Change selections with a single click and the K40 logo flashes red to indicate button activity. When finished with use, you can hide the remote control in an interior storage area or leave it attached to a sun visor via the supplied clip.

Expert Control Unit (optional) —
The ultimate in OEM style and convenience! This permanently installed, yet easily concealed component puts control of system settings and functions in a fingertip reach location. The Expert Control Unit looks and functions just like factory vehicle controls and is backlit for easy button identification in low light conditions. Available only through select Expert Dealers…contact us for a dealer referral. (install photo: Kingpin Car & Marine Audio)

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.


Directional Awareness — With voice alerts as well as dedicated threat location LED indicators (left=front radar signals, right=rear radar signals) you’ll be able to quickly and safely take action.


The RL360i offers you 17 customizable settings, including GPS features such as:

Mark to Mute — By using sophisticated GPS technology, you can easily program your system to mute the audible warning of false, non-police radar locations (e.g. speed reading signs) you regularly travel past with a simple button push.

Quiet Ride — Eliminate annoying alerts in areas with a high concentration of non-police radar sources such as a strip mall with many automatic opening doors. By setting a minimum detection speed, all audible alerts are eliminated until your vehicle exceeds the defined speed.


Mark to Alert — The most convenient way to remind yourself of locations that require increased observation diligence. Just one button push will create an audible warning to dangerous intersections, speed traps, school zones, and red light cameras.

Speed Monitor — It’s like having a vigilant co-pilot riding with you at all times. Whenever a preselected speed is exceeded, a constant audible alert is activated along with the LEDs illuminating.

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

Specifications Technical
Operating Frequencies 10.500 – 10.550 GHz (X-Band)
24.050 – 24.250 GHz (K-Band)
33.400 – 36.000 GHz (Ka-Band)
Power Requirements 11.5 – 16.0 Volts DC negative ground
500 mA typical standby
Wireless Remote Control CR2032 Cell Battery
Wireless Remote Control
Front Radar Receiver
Rear Radar Receiver
GPS Module
Interior Host Module
3.07 in L x 1.4 in W x.47 in H
4.10 in L x 3.20 in W x 2.00 in H w/attached 15′ cable
4.10 in L x 3.20 in W x 2.00 in H w/attached 20′ cable
2.00 in L x 2.00 in W x .50 in H w/attached 20′ cable
5.749 in L x 3.249 in W x 0.90 in H w/attached audio quality speaker
Optional Expert Control Unit 1.76 in L x 0.76 in W x 0.35 in H w/attached 8′ cable
Weight Total system 2.5 lbs
Temperature Range -40° – +165° Fahrenheit

Filter Settings:

Level/Mode Sensitivity Recommended Use
1.Highway (factory default setting) Detects all types of North American approved police radar at maximum range and sensitivity 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 remain at full sensitivity. When traveling in an urban area with minimal non-police radar signals.
3. Filter X-Band detection is eliminated completely. K and Ka-Band sensitivity are reduced by 50%. Use this mode when traveling in congested traffic areas with a high concentration of non-police radar signals.

Additional System Features:

  • Handheld Remote Control – Visor clip or dash mounting options
  • Voice Type – Female or Male
  • Alert Type – Voice or Tones
  • Distinct Tones for all Bands – X, K, Superwide Ka, and Laser alerts (when optional
  • Laser Defuser g5 is incorporated)
  • Fully Independent Customization – Each radar receiver can be independently
  • customized for band awareness and alerts
  • Start-Up Sequence – Audible and visual sequence at start-up
  • Abbreviated Test – Optional abbreviated start up sequence
  • Display Type – Single/Dual blue LEDs or warning pods custom-integrated into driver’s cockpit view
  • Signal Strength Indicators – Audible Geiger strength indications

Factory Default Settings:

  • Voice On
  • Voice Female
  • Wake-Up Long
  • Auto Mute Off
  • POP Off
  • MPH
  • Speed Monitor Off
  • Front Radar On
  • Front X-Band On
  • Front K-Band On
  • Front Ka-Band On
  • Rear Radar On (RL360i system)
  • Rear X-Band On (RL360i system)
  • Rear K-Band On (RL360i system)
  • Rear Ka-Band On (RL360i system)
  • Laser Constant Transmit (with optional Laser Defuser g5)
  • Factory Reset