| | |  | Radar Detectors | Home » » » » Cobra XRS 9940 Maximum Performance 12 Band Radar/Laser Detector | | | | | | | Description: | | Cobra Electronics XRS-9940 12 Band Radar Laser Detector. The XRS 9940 provides total protection and peace of mind with the Xtreme Range Superheterodyne Technology, detecting all 12 radar/laser bands with its super fast lock on detection circuitry. The unit provides extra detection range and the best possible advance warning to even the fastest of POP mode radar guns. It comes with the Cobra exclusive full color ExtremeBright DataGrafix display, an 8 point electronic compass, Voice Alert, car battery voltage display/low car battery warning and much more. | | | Features: | |
• 12-band high-performance radar/laser detector with ultra-bright 1-inch color OLED and voice/tone alert
• Detection and separate alerts for X, K, Ka, and Ku radar bands, laser signals
• Superheterodyne Technology provides extra detection range and the best possible advance warning to even the fastest radar guns
• Safety Alert function warns drivers of emergency vehicles and roadwork hazards
• One-year warranty
| | | Product Details: | | | Product Length:
| 4.89 inches | | Product Width:
| 1.51 inches | | Product Height:
| 3.06 inches | | Product Weight:
| 1.13 pounds | | Package Length:
| 10.0 inches | | Package Width:
| 8.5 inches | | Package Height:
| 2.9 inches | | Package Weight:
| 0.7 pounds | | Average Customer Rating:
|  based on 10 reviews |
| | | | Customer Reviews: | |
Average Customer Review:
 ( 10 customer reviews )
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Most Helpful Customer Reviews
10 of 10 found the following review helpful:
 Good for what you pay.Jul 25, 2008
By UltraB
I received this detector as an exchange for an earlier Cobra I sent in for service. Honestly, among diehard radar detector enthusiasts (yes, there are such folks) Cobra detectors don't have a great reputation. Cobra attracts a lot of first-time detector buyers with loudly-advertised "features" on their units. Truly, many of these don't have a real useful purpose.
Honestly, Cobra has made strides toward a better detector in this and the last generation of it's pricier units. Detection range is on par with other units you might find in this price range (or even a bit higher) with the exception of one of the widely used Ka frequencies. Several folks who've tested recent Cobras have reported a glaring lack of sensitivity to the 35.5 Ka frequency. This COULD be bad news for many folks out there as this is one of the more widely used of the Ka frequencies. However, if this is not in use on your commute, the Cobra 9940 is an acceptable unit for the daily commute. It's range is adequate although not on par with the the Bel Vector series which is priced in the mid to high $100 range. Whistler also makes a trio of detectors in this price range (XTR-690, XTR-695, and Pro 78) which tie the Cobra on detection of some frequencies and surpass it on others. Certainly, Whistler's units appear to excel at all Ka frequencies. If you can make due without the flashiness of the Cobra units, the Whistlers are certainly worth a look.
In short, this is an adequate detector for many drivers who don't surpass the speed limit by more than 8-10 mph. However, don't count on it for much more than that. But then again, a radar detector is just one tool to use in conjuction with one's own judgement when electing to surpass the speed limit.
2 of 2 found the following review helpful:
 OK so far but compass is a pain!Jul 05, 2008
By Woo
So far I don't have much to complain about. I have had this unit for about a month. I do notice more advance warning than my old whistler unit. I have had the emergency vehicle approaching warning a few times when there was not emergency vehicle within sight and when there was one in sight I get nothing so I guess some of these bells and whistles are just that. The compass has had to be recalibrated 3 times now as it would all of a sudden only read SW. What's up with that?
So, as a radar detector I have been pretty pleased.
1 of 1 found the following review helpful:
Consider a later modelJul 10, 2009
By Clifford
Cobra 9940 seems to work well for the bands it covers (at least I get lots of false alarms, probably due to cell towers and similar things), but I've been by at least 2 speed traps in NH where the gun has been up and on me without a response, so I suspect they are using newer technologies. If I had known, I would have shelled out more $ for a later model.
1 of 1 found the following review helpful:
 Very Nice DetectorSep 01, 2008
By ChopStixs
This is the second detector I have owned, my old one stolen from my truck when it was at the tire dealer overnight (They don't know how to lock the truck or set the alarm apparently). I am far happier with this detector than my old one. It is more stylish, the speaker is clearer, the screen is sharper and it functions well too.
Good for the priceSep 22, 2011
By RamIt
This unit is usefull when travelig four lane hiways but it can burn you on the two lane. Don't do more than 10 mph over with this init.
See all 10 customer reviews on Amazon.com
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