Reviews & Articles
Widely published automotive journalist Eric Peters was curious how K40 Electronics’ RLS2 portable radar detector would stack up to his beloved Valentine 1 unit as well as if the RLS2 suffered from annoying false warnings from other vehicles’ radar-based safety features like collision avoidance. Read the review to find out why Eric says, “the K40 is very sensitive – and…Read more
What does a new owner of a pre-owned classic Porsche do when the vehicle comes with a functional, but older technology K40 radar detector? They upgrade to the latest custom installed system! Read the Excellence The Magazine About Porsche review and learn how a “complex” installation is professionally handled and how the system saves the owner from a ticket on the very first…Read more
“So far, this detector has saved us from two different tickets which means its paid for itself and then some.” Read more
“He (the police) would have had me dead to rights, and I would have had no excuse. That time, my K40 literally did save my ass from a big ticket.” Read More
Owners of Ford F-Series and Chevy Silverado pickup trucks are increasingly choosing to add K40 radar detector protection to their rides. Watch as a K40 RL200i Expert system is custom installed in a Ford F450 so it looks like it came built-in from the factory. Keeping this truck free from speeding tickets couldn’t have come at a better time as while driving…Read more
Jady Pham of The Anatomy of Cars loves his BMW M2 and wanted to give it guaranteed ticket-free protection. As he said, “I always wanted a radar detector to protect myself if I was accidentally speeding.” Check out Jady’s review video and learn what he thinks of the K40 RLS2 portable radar/laser detector as well as watch him (at 2:45) interact live with…Read more
Automotive enthusiast David Patterson of the popular ThatDudeInBlue YouTube channel checked out our RLS2 portable radar/laser detector and found “on the highway, it’s a lifesaver.” Watch the video to learn what else he has to say about the unit and radar and laser in general.
The crew at Hooniverse followed up on their RLS2 Portable Radar/Laser Detector review with a look at our K40 RL360i Expert custom installed system . Watch the video for why they said, “Overall, it’s better than any portable unit.” Part 3 of the review will compare the two systems in performance testing against trained police officers so stay tuned!
“…99% of the time it detects the radar signal well before I see the police car… a quality detector that didn’t have a zillion false alarms.” Read more
“Being that newer cars are running K-band frequencies for lane control, brake assist, and other safety options, we were concerned that this radar detector was going to be full of false alerts. To much surprise it didn’t, that is because the RLS2 comes equipped with an automatic K-Band filter that filters through the abundance of K-Band…Read more
“…on the open road when I got an alert, it was from an actual police car. In each case, I had at least a mile to slow down…the K40 system is the best I’ve ever experienced…” Read more
“Some people habitually drive too fast. For them, a good radar detector is a great way to keep tickets at bay. For me, however, a good radar detector is an effective reminder to pay attention and watch my speed.” Read More
“The data speaks for itself…(Jam To Gun on all test runs)…I definitely stand behind the jammer…” Read More
“I managed to pick up his (Sheriff’s Deputy) signal from 1.6 miles away coming and going!…I was speeding, and the K40 system gave me enough of a heads up that I had plenty of time to check myself and slow down. Possible tickets averted!” Read more
After writing an article about how he didn’t need a radar detector and getting quite a good amount of reader feedback that suggested otherwise, automotive enthusiast and writer Justin Hughes of Right Foot Down tried the K40 RLS2 portable radar detector. He was “quite impressed with how far the technology has advanced.”
To really convince Justin of the need for stealthy protection,…Read more
Automotive enthusiast and photographer extraordinaire Jason Thorgalsen of JTPhotos.net shot an overview video of a K40 RL360i Expert radar detector and laser jamming system being installed in his BRZ by Eric from Custom Installations and Performance . Watch the video to see why Jason says it’s “an incredible system…everyone I show the system to can’t believe it wasn’t done at the Subaru factory, it…Read more
“…an area infested with numerous false radar sources. Yet the RLS2 doesn’t give me a single false alert there. Impressive. Most impressive.” Read more
“You will be pleasantly surprised with its many features, top notch performance, and up to 13 customizable settings for individual drivers.” Read more
The crew at Hooniverse is checking out our RLS2 Portable Radar/Laser Detector and will compare it to the K40 RL360i Expert custom installed system. This is first of several videos they’ll create and in summing this Part 1 up, the RLS2 is rated as “great”. Watch the video for all the insights:
“…comes with a great guarantee…easy to set up, offers lots of functions both detection and safety-wise…” Read more
“I couldn’t believe how far away I was from the speed trap yet the detector was going off as if I was right next to the officers. It’s easy to use, it gets the job done, and comes with features that sets it a bar above the rest.” Read more
“Overall, I am very impressed…the RLS2 Radar/Laser Detector is one of the best on the market…” Read more
“I’ve used it for a while and haven’t gotten a ticket…it’s packed with amazing features past the Ticket-Free Guarantee program.” Read more
“I wanted to have the best radar detection and protection setup available…I am quite pleased so far…looks surprisingly factory installed…avoided a likely ticket just a couple of days after install.” Read more
“…what’s needed in today’s digital age to take back control and eliminate the angst and tension of driving.” Read more
“…(the RLS2) has performance no other radar detector offers…it has saved me from at least 2 tickets already…” Read more
“A valuable addition to any vehicle. Overall the product performs as described and is a great value for the money.” Read more
“Performance-wise, it does great and it features a lot of options we would expect from an advanced unit.” Read more
This week in the shop Mercedes SLS AMG installing:
K40 Defuser G5 and LTS
In this Mercedes SLS AMG we installed a K40 RL360i, Defuser G5 and secondary laser defuser LTS. We do also sell and offer Escort radar detector products, but our shop does think that K40 offers the best radar…Read more
Even though the best method of avoiding speeding tickets is to simply not speed, for most car guys this is not an option.
“Lead footers” (or speeders) range from the “chronically late” and “always in a rush” crowd, to those like me who love driving as fast as possible. Whatever the reason (even if it’s…Read more
I was contacted by K40 in August about reviewing their portable radar and laser detector, the K40 RL100. I wanted to make sure I got a good feel for the product before giving my opinions on it. I’ve used this product for a solid six months, and found all kinds of laser, radar, and speed…Read more
January 2014 Review. A little history before getting to the fun stuff.
Another generation of the well known Defuser brand has made it to the market. Since 1996, K40 has been developing infrared speed detection inhibiting ‘plate frames.’ The jamming techniques have changed over the years(Brute/white noise to pulse match), but the customer service has…Read more
When it comes to radar detectors, most people have absolutely no idea what to look for. The truth is that many radar detector manufacturers make some pretty gradiose claims and have countless features that most people really have no use for.
The K40 RL100 radar detector has a few interesting features that make it a…Read more