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Fit it Yourself?

Everything you need to fit it yourself at home

Only £30.00 

With Steering Wheel Control
Only £50.00 

Cobra Alarms A4138HF, Bridge Category 1 Car Alarm / Immobiliser, Microwave sensor

Save: £167.99 (47%)  rrp: £357.98
5 Stars 5
Quickfind Code - 23427
Save: £167.99 (47%)
rrp: £357.98
This product has been discontinued

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Sorry, this product has been discontinued. please call us for alternatives

Key Features

A, Bridge Category 1 Car Alarm / Immobiliser, Microwave sensor - Cobra Alarms 4138HF

Cobra 4138HF Cobra Bridge Category 1 Car Alarm / Immobiliser

Cobra A4138HF is a remotely controlled via the latest and highly secure digital code technology (Arithmetic Controller Engine), the new Cobra 4138HF offer the highest protection level with its additional engine cut immobiliser module and multiple push button remote control. Designed to comply with the strictest insurance companies homologation specifications.

New security features such as automatic hazard light warning (in an emergency brake, hazard lights come on automatically) and speed limit alert.

Cobra 4138HF Features

  • High security ACE remote controls with auto learning
  • Microwave sensor (designed for open top vechicle)
  • Single engine immobilisation circuit (built-in)
  • Immobiliser passive arming
  • Alarmn passive arming
  • High power back up battery siren
  • Automatic re-arming in case of accidental disarming
  • Panic Alarm
  • Anti hi-jack (programmable in automatic and/or voluntary mode)
  • Insurance approved
  • Thatcham Category 1 status

Download image of Cobra Alarms 4138HF Click here for Image of Cobra Alarms 4138HF
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Questions/Answers About This Product
  • Question: 10 March 2019
    Car: Ford Fiesta - 2008>

    Hi, I'd like to fit an alarm and immobilizer on my Ford Fiesta ST MK7. Do you deliver and fit on site? Does this product have guarantee? I'd like to install it asap so please let me know. Thanks


    Alarm installation can only be done at the stores. Please contact your local store for a supplied and installed quotation.

    Found Useful? Yes 

  • Question: 06 August 2017
    Car: Toyota Landcruiser - 2005 >

    I have a 80 series land cruiser of 1994 model. I was willing to enhance it's security.

    Can you tell if this system fits my vehicle?


    yes this the cobra a4138hf will work in your vehicle

    Found Useful? Yes 

  • Question: 20 July 2016
    Car: Ford Focus - 2004>

    hi, i contacted the Leicester branch who were useless. They couldnt even advise if you sold CAT 1 car alarms!!!
    Doesnt bode well at all.
    shame i could respond to my initial query.

    I am sorry you had a bad experiance with our leicester store.
    Yes we do cat 1 and 2 alarm systems for your vehicle.
    our full range is able to be viewed on our website under road safety.
    your vehicle requires a analogue style system not canbus style.
    Car alarms require detailed information to be given to us so we can reccomend the correct system for you and quote on installation if needed.
    I am happy to help you choose the correct product so please feel free to contact me at the birmingham store on 01214593131
    store manager

    Found Useful? Yes 

  • View All
Fitting Services

Need help with Installation?

Here at CarAudioCentre we offer a professional and reputable fitting service in all our stores. For all fitting enquiries and bookings please visit or call one of our nationwide stores. Our fitters can install your new car stereo, DAB radio, audio visual, speakers, subwoofers or amplifier. We can also help to connect your iPod or MP3 player to you existing audio unit and can offer the best advice on the right in-car entertainment for your vehicle, to further this more we also offer a total 100% custom installation service for demo and show vehicles. So if you have an idea come on in and run it past us, the possibilities are endless and we are never too busy for an enthusiastic chat about our favourite subject.

Please note:

"That our two year warranty on products is only applicable to purchases made directly from us and that have been fitted in one of our stores."

Our Stores:

542 546 Mansfield Road, Sherwood NG5 2FR
Tel: 0115 9624 986
743-745 Eastern Ave, Newbury Park, London, IG2 7RT
Tel: 0208 599 2368
835 Garratt Lane, Tooting, London, SW17 0PG
Tel: 0208 971 9181