Cobra XRS 9940 Maximum Performance 12 Band Radar/Laser Detector Review

Cobra XRS 9940 Maximum Performance 12 Band Radar/Laser Detector
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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.

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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.

12-Band Detection Detects 6 radar, 4 laser and 2 safety signals. Radar signals include X Band, K Band, Ka Superwide, Ku Band, VG-2 and Spectre. Laser signals include LTI 20-20, Ultra Lyte, ProLaser and ProLaser III. Safety signals include Safety Alert and Strobe Alert.
Full Color ExtremeBright DataGrafix Display 1.0" OLED display provides enhanced data display in easy-to-read vivid colors. Also allows user to select from 5 different color schemes to match dash illumination (Full Color, Blue, Orange, Green and Red).
POP Mode Radar Gun Detection Detects the latest POP Mode Radar Gun (Super-fast Instant-On Mode)
Ku Band Detection Detects Ku Band Radar Gun currently being used in Europe. Be prepared for future introduction in the U.S.
LaserEye Provides 360-degree detection of laser signals.
Voice Alert Warns driver with specific voice annunciation of the signal being detected.
VG-2 Alert/ Undetectable Provides complete immunity and alerts the driver when under surveillance of VG-2 Radar-Dectector-Detectors.
Spectre Alert I/Undetectable Provides complete immunity and alerts the driver when under surveillance of Spectre I radar detector-detectors.
Strobe Alert A Cobra exclusive, works with tens of thousands of emergency vehicles currently equipped with traffic light controlling strobe emitters. Provides advance warning of the presence and/or approach of emergency vehicles.
Safety Alert Warns drivers of the presence and/or approaching emergency vehicles, railroad crossing, and road hazard locations equipped with Cobra's exclusive Safety Alert transmitters.
Auto Mute sAutomatically mutes the alert tone for enhanced driver convenience.
IntelliMute Relative-speed-sensing Auto Mute system that virtually elminates false alerts.
IntelliShield False Signal Rejection 3-Level City Mode offers the best false signal rejection in both urban and rural areas.
Digital Signal Strength Meter Provides the driver with relative proximity to the target using 5-level digital signal strength meter.
SmartPower Automatically shuts off power to the unit when ignition is turned off.
Car Battery Voltage Display Provides graphical display of the car battery voltage and also warns the driver when it is low.
City/Highway Selector Allows the user to select operating mode, reducing the frequency of falsing in densely populated urban areas.
Dim Mode Allows the user to dim the radar detector display enhancing night driving visibility.
EasySet Programming Menu User-friendly mode selection/setting with visual guidance.
Stay Set Electronic Memory Electronically remembers radar detector settings for an indefinite period of time even with the power removed.
Low Car Battery Warning Alerts user whenever battery voltage falls below 11.9 volts.
8-Point Electronic Compass Automatically provides an accurate electronic direction heading.
What's in the Box XRS 9940 Radar Detector Unit, Coiled 12V DC Power Cord, Windshield Mounting Bracket with suction cups, Instruction Manual

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