The best and quietest long range police radar detector for speeding ticket protection
Four hidden receivers, 18 unique settings, hundreds of customizable options
A police radar detection system so complete, you’ll fly down the road surrounded by a virtual forcefield of protection. An installation so discreet, your friends will ask if it came with your vehicle.
The K40 Five-Star Guarantee
It’s the best, most comprehensive guarantee in the business, and we make it with the utmost confidence.
Drive Ticket Free
Get a ticket during the first year of ownership, we pay for it, subject to the terms and conditions below. Simply send us a copy of the radar or laser speeding ticket, your proof of payment of the ticket, and your receipt for your K40 purchase.
100% Ownership Guarantee
- 100% Performance Guarantee – If your K40 Radar Detector or Laser Defuser does not outperform any other radar or laser protection system 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 remote radar detector is ever stolen, we’ll replace it.