K40's Exclusive Guarantees

K40 continues to offer the best guarantees in the industry, as it has since 1981. It's a confidence that comes from three decades of designing the very best automotive Radar and Laser Protection Systems in the world.

If you get a speeding ticket, we'll pay for it.*

K40 was the first radar detector manufacturer in the world to offer a speeding ticket guarantee. Thirty years later, we are still the company with the confidence to back all of our products with this guarantee: All speeding tickets covered in full, no questions asked, for one full year from the date of purchase.* To ensure you're covered by all the K40 guarantees, register your product today.

RL100 Exclusive Radar Detector Guarantees

Along with the industry's only comprehensive speeding ticket guarantee, your RL100 guarantee also includes:

RL200/RL360 Exclusive Radar Detector Guarantees

Along with the industry's only speeding ticket guarantee, your K40 guarantee also includes:

K40 Laser Defuser EX and Defuser EX-2

If you get a laser speeding ticket within the first year after purchase and installation of the Laser Defuser EX or EX-2, we'll pay for it........Guaranteed! *

K40 was the first laser detector/jammer manufacturer in the world to offer a speeding ticket guarantee. No gimmicks, no limitations for the first full year. It's how we know our product works, it's how we know you're protected.

* Speeding ticket guarantees not valid for tickets written in school or construction zones, or incurred with a DUI violation.