Amazon.com: Customer Reviews: Cobra XRS 9840 Ultra Performance 12 Band Radar/Laser Detector

Customer Reviews

Cobra XRS 9840 Ultra Performance 12 Band Radar/Laser Detector by Cobra

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3 star:
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2 of 2 people found the following review helpful:
4.0 out of 5 stars Does what it was designed to do ....
I took a recent 400 mile trip in to West Virginia from Virginia and this unit alerted me several times ... with enough time for me to check my speed and adjust accordingly. I picked up a moving police car coming up on my rear several minutes before the police car caught up with and passed me. So, in my opinion, for the money, it's a good unit. TWO things I do not like:...
Published 23 months ago by John H. Derickson

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2 of 2 people found the following review helpful:
2.0 out of 5 stars SAVE TIME AND LOOK ELSEWHERE!
My old and reliable Cobra Radar Detector went out and I decided to get this one. I don't know if Cobra made the newer models less sensitive or what. This model has no range and gives too many false alerts. Am sending it back to get a Beltronics Detector.
Published 18 months ago by Tommy Villegas

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2 of 2 people found the following review helpful:
2.0 out of 5 stars SAVE TIME AND LOOK ELSEWHERE!, February 19, 2009
This review is from: Cobra XRS 9840 Ultra Performance 12 Band Radar/Laser Detector (Electronics)
My old and reliable Cobra Radar Detector went out and I decided to get this one. I don't know if Cobra made the newer models less sensitive or what. This model has no range and gives too many false alerts. Am sending it back to get a Beltronics Detector.
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2 of 2 people found the following review helpful:
4.0 out of 5 stars Does what it was designed to do ...., October 7, 2008
By John H. Derickson "jay dee" (Dale City, VA) - See all my reviews
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This review is from: Cobra XRS 9840 Ultra Performance 12 Band Radar/Laser Detector (Electronics)
I took a recent 400 mile trip in to West Virginia from Virginia and this unit alerted me several times ... with enough time for me to check my speed and adjust accordingly. I picked up a moving police car coming up on my rear several minutes before the police car caught up with and passed me. So, in my opinion, for the money, it's a good unit. TWO things I do not like: I'd like to have a visor mount and I'd like to have a straight, fairly long power cord. For this reason I give the detector a 4.
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1 of 1 people found the following review helpful:
5.0 out of 5 stars If you don't have one, get one., December 26, 2008
This review is from: Cobra XRS 9840 Ultra Performance 12 Band Radar/Laser Detector (Electronics)
I've probably used this for about a year now. Still going strong. Saved my a** more than once. I think cobra makes some the best radar detectors in their price range. This one replaced my old cobra that was about 7 years old. I would say this one gives me about twice the warning time of my older one. It does a better job of picking up the radar signal when i'm approaching the crest of a hill. Highly recommended!
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1.0 out of 5 stars WOULD NOT RECOMMEND., September 4, 2008
By S. Logan "jakesmom" (king, nc) - See all my reviews
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This review is from: Cobra XRS 9840 Ultra Performance 12 Band Radar/Laser Detector (Electronics)
I purchased my Cobra XRS-9840 a few weeks ago and had high hopes because of the great price. I was very disappointed after using it for several days, it didn't work at all.

1) The sticky velcro was a horrible idea. It fell off 100 times after strategically placing it in different areas of my windshield.

2) The screen is tiny. I do like the blue LED on the black screen but I don't like that the detector is so big and bulky and the screen is small.

3) I programmed it correctly and it still barely picked up anything. When it did pick something up, it was a grocery store or drug store, NOT ONCE did it pick up a patrol car.

Complete waste of money.
My advice : Go with a Beltronics. This is what I have now and for almost the same price it is much better quality.
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3.0 out of 5 stars Good unit, better out there for the price., August 1, 2008
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This review is from: Cobra XRS 9840 Ultra Performance 12 Band Radar/Laser Detector (Electronics)
The Cobra 9840 has plenty of features that are good. The only major problem is the lack of radar sensitivity. Not close in comparision of other brands of units such as the Whistler pro 78 or xtr 690. Both are within the price range of the Cobra while offer much better performance and detection range. Check out the others before buying the Cobra brand.
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1 of 2 people found the following review helpful:
5.0 out of 5 stars Great Service, Great Product!, January 6, 2009
By D. Swiger "Colorado Dave" (Colorado Springs, Co) - See all my reviews
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This review is from: Cobra XRS 9840 Ultra Performance 12 Band Radar/Laser Detector (Electronics)
Had no problems with anything. Site was easy to navigate, and the prices were great. Product is excellent and delivery speed was exceptional especially before xmas 2008.

Thanks,

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