- Advanced Microwave Radar Receiver Design.
- Detects X,K and Superwide Ka band Radar and Laser.
- K40 will pay any or all radar or laser speeding tickets you get for one year after purchase.
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Product Description
The only portable all-band radar and laser detector with a ticket-free guarantee. This is total speeding ticket protection! The only portable detector you'll ever need. And only from K40 Electronics. Designed from the same technology as our signature Undetectable Remote Systems, the RD850 is a technological marvel in a sleek package that requires no installation. Just mount it on your dash, visor, or windshield, and plug it into your cigarette lighter (can also be connected to your fuse box). Dismounts in seconds too. So it's perfect for second cars or rental cars. "In our test of the industry's top rated radar detectors, no other detector outperformed K40's new portable RD850 or Undetectable Remote System for maximum range reception on all bands from 2 miles. Both K40 detectors provided outstanding performance to all radar guns under all conditions." Speed Measurement Laboratories
Customer Reviews
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Most Helpful Customer Reviews
4 of 4 people found the following review helpful:
5.0 out of 5 stars
K40 makes a great product!,
By
This review is from: K40 Radar Detector (Electronics)
I have had this radar detector for at least a month now, and it has never let me down yet. It detects everything, and it detects it from amazingly far away. I have measure it as far as 3 miles! The filter option on it actually works as well, when its used it doesn't send the unit into a frenzy when i go past a walgreens or osco drug store. This is a fantastic product, and I would buy it again, and recommend it to anyone wanting a great radar detecor.
2 of 2 people found the following review helpful:
5.0 out of 5 stars
Very good detector,
This review is from: K40 Radar Detector (Electronics)
So far this radar detector has been a good buy. Simple to operate and has been very effective with its detection. It is affected by auto door operators at stores etc. but not near as bad as other detectors I have owned. I doubt there is one on the market that does not pick up such signals. It has not however picked up other detectors like around 18 wheelers which is why I ditched my Whistler. I like the sound that it makes-not annoying or too soft to hear. I would recommend this detector and spent many hours researching as I do with all purchases and feel that this was well worth the money.
2 of 2 people found the following review helpful:
5.0 out of 5 stars
Radar Detector,
By Satisfied Customer (Memphis, TN) - See all my reviews
Amazon Verified Purchase(What's this?)
This review is from: K40 Radar Detector (Electronics)
This is a great radar detector! I would recommend this to anyone. Luckily, I had a friend that has been using this radar detector for 5 years and he has never gotten a ticket. It's $100 cheaper than the Valentine One and it will pay your first ticket up to a year. The real selling factor was the Valentine One being such a hot commodity for thieves. With the K40, it really looks inexpensive so hopefully that will thwart criminals. Great product. So far, it has alerted police radar with plenty of lead time!
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