Best Car Key Signal Blocker Box & Pouches

    Are you looking to protect one of the most expensive things you own? Your van, motorhome or car? There is no point in locking your car if it can be unlocked without the need for your key. You should be looking in to faraday car key pouches which protect your keyless car keys from being used to get in to your car.

    In this article we compare the best car key signal blocking pouches and faraday boxes. Looking to block RFID, NFC as well as WIFI signals, all of the security devices below act as mini faraday pouches that will keep your mind at ease.

    We have a couple of these now and use them day in and day out, it's no extra work and we know our car isn't going to get nabbed from us when we least expect it and because of a technological loop hole.

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    What Is A Faraday Pouch

    From Wikipedia: "A Faraday cage or Faraday shield is an enclosure used to block electromagnetic fields. A Faraday shield may be formed by a continuous covering of conductive material or in the case of a Faraday cage, by a mesh of such materials. Faraday cages are named after the English scientist Michael Faraday, who invented them in 1836."

    Because your keyless keyfob uses electrical signals to open your car, start the engine, this means that it can also be controlled or used in a way which is detrimental to you.

    So placing your keyfob for your car in to a faraday signal blocking pouch should give you added protection.

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    How To Use A Signal Blocking Pouch

    All you need to do is keep your key inside it's pouch when you are not in your car, it's that simple. Just make sure the pouch is closed and sealed when on you, in your pocket or in your home. That way, if the key is still near to your vehicle, it can't be used against you when you aren't keeping an eye on the key or your car.

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    We have ranked the Hyton and the Harris Tweed signal blocking pouches as the best car key faraday signal blocking pouches to improve security when in and around your car.

    If you are looking for a cheap car key signal blocker for your keyless car fob, the Hyton is the option for you. It is a simple looking yet practical keyfob security pouch. 

    The Monojoy car signal blocker in the faux leather encasing is ranked as third. Another simple looking faraday pouch for your keyless keyfob. It will block all wireless signals and protect your car and key as you enter and leave your car alone when the keyfob is in your pocket.

    The Minder car signal pouch is as simple as they come. Big enough for your phone or your keyless cars keyfob, this security pouch will do just as good job as any other we have reviewed. You can also find this one in many different colours.

    Finally the Alpha Shield, a solid box design that is our least favourite car signal security device. Unfortunately it only works on a number of car manufacturer keyfobs and we feel that your car fob doesn't need a solid box to protect it.

    This is a review of the Hyton Car Key Blocking Case

    Hyton Car Key Blocking Case

     

    Technical Details
    Portable
    Yes
    Waterproof
    Yes
    Rating
    4.7/5
    Price
    £
    Warranty
    No
    Vehicle
    car
    suv
    truck
    van
    Brand
    Hyton
    Number of seats
    1 seats
    Dimensions
    18 x 10 x 2 cm
    Weight
    41 g
    Washable
    No
    Next Day Delivery
    No

    The Hyton Car Key Signal Blocker case is a small and lightweight fabric pouch. It comes as a pack of two and is made of specific fabric layers to create a 100% signal blocking pouch.

    Hyton Car Blocking Case

     

    It is designed for a car key with fob in mind, however it will also fit cards or a small smart phone inside but not all together. You aren't going to get a large phone in there either such as an iPhone 6 or CAT S60.

    The pouch can block RFID, NFC as well as WIFI signals, which is handy when you need to switch off from connecting with your phone is situations such as when you are driving.

    Hyton Car Key Blocking Case

    The inner layer of the blocker uses a RFID nano-shielding material that encompasses the car key or phone inside with a 70-90db shielding ability. A car fob has a signal strength of 58db which means it is safe within the pocket from theft. There is a white cloth that is strong and helps protect the inner layer from scratches. The pouch uses strong stitches and closes with velcro. The outer layer has a soft waterproof leather like material which also helps to make this a robust and long lasting case.

    Pros
    • 100% block fob signal
    • Pack of two
    • Outer waterproof material protects from scratches
    • Can also hold credit and debit cards or small phone
    • Reduces temptation of using phone while driving
    • Easy to clean
    • Pocket size
    Cons

    Cannot put in a large smart phone inside the case such as an iPhone 6 or CAT S60

    Delivery takes a while

      Verdict

      The Hyton Signal Blocker case is water resistant, is easy to pop in your pocket and prevent your car from being taken. This blocker really does work and with its small convenient size its easy to forget you even have it.

      This makes it a winner in our eyes, because it's a no fuss solution to something that could really ruin your day.

      This Product is Compared With Others Like It

      This is a review of the MONOJOY Car key Signal Blocking Harris Tweed Pouch

      MONOJOY Car key Signal Blocking Harris Tweed Pouch

       

      Technical Details
      Portable
      Yes
      Waterproof
      Yes
      Rating
      4.7/5
      Price
      ££
      Hand held
      Yes
      Warranty
      No
      Vehicle
      car
      suv
      truck
      van
      Brand
      MONOJOY
      Number of seats
      1 seats
      Dimensions
      19 x 11 cm
      Weight
      73 g
      Washable
      No
      Next Day Delivery
      Yes

      The MONOJOY Harris Tweed Signal Blocking pouch is a beautiful looking signal blocker. It is unique in design and is handmade using tweed from the Isle of Harris in Scotland. Tweed like this is a fantastically useful material for the outside of the pouch as it is water and wear resistant. It is also hard-wearing and abrasion resistant.

      MONOJOY Car Key Signal Blocker

      This case for your car fob or phone also doesn't look as if that is what it is inside, which also helps deter thieves from discovering the pouch. It is extremely well crafted and includes a small D ring for the pouch to be attached to your bag, or somewhere to prevent it being snatched of you, or to attach a handle to.

      To the inside of the pouch is a gold liner this is an RFID blocking sleeve that is the section that is the signal blocker, proventing car fob signal, WIFI, 4Gand NFC. It will easily fit any car fob or mobile phone, there is some give to the fabric. Then this will easily fit in your bag and you could potentially squeeze it into a pocket.

      MONOJOY Car Key Signal Blocker in car

       

      What we really like about this company is that they have a couple of versions of the Harris Tweed faraday signal blocking pouches. Below you can see a smaller version, in grey which has a keyring lock on it which makes it a little bit more practical as well.

      monojoy harris tweed faraday key fob signal blocker pouch

       

      The smaller pouch can only fit in an electronic keyless car fob key, but that is all you need for this security feature. Just like the larger wallet sized version, it protects you from different wireless insecurities. 

      If you want a smaller option with all the security features, this should be your choice.

      Pros
      • Beautiful design
      • Hardwearing
      • Next day delivery with Amazon Ptime
      • Wear and water resistant
      • Suitable for car fobs or phones
      • Abrasion resistant
      Cons
      • Need to wait a minute to be secure
      • Make sure to fully seal it closed for it to work
      Verdict

      This is a beautiful signal blocker case, handmade, unique and keeps your private data and belongings safe. Both of the Harris Tweed Faraday Pouches look really good and do exactly what you want of them, protect you from getting your car stolen.

      This Product is Compared With Others Like It

      This is a review of the MONOJOY Car Key Signal Blocker Case

      MONOJOY Car Key Signal Blocker Case

       

      Technical Details
      Portable
      Yes
      Rating
      4.6/5
      Price
      £
      Hand held
      Yes
      Warranty
      No
      Vehicle
      car
      suv
      truck
      van
      Brand
      MONOJOY
      Dimensions
      20 x 10 cm
      Weight
      41 g
      Washable
      No
      Next Day Delivery
      No

      The MONOJOY Car Key Blocker is a fabric pouch made from 210D nylon that is strong, long-lasting and durable. The flap that goes over the seal the pouch is also a good size that helps to keep it firmly sealed even with a smart phone inside. There is a gold inner mesh and this is the part of the pouch that makes it a signal blocker and an excellent one at that, you can be in your car with it in this pouch and the key fob will not start your car.

      MONOJOY Car Key Signal Blocker

       

      This little case has the ability to block signal from your car fob, phone, WIFI, GPS. Keeping your data and belongings safe. It comes as a pack of two which allows you to keep both your main car fob and spare car key fob protected. The stitching is strong and the durable material means it can withstand being in a handbag of a busy active person or family household.

      This car key signal blocker pouch is very similar to the Hyton Car Key Blocking Case which we have written about. The difference with this is that it costs slightly more at the time of writing, but is as good as security device.

      Pros
      • Stylish design
      • Pack of two
      • Good size
      • Discourages phone use when not appropriate to use
      • Pocket size
      Cons
      • Delivery delays
      • No choice of colour
      Verdict

      Durable, long-lasting signal blocker pouch by MONOJOY is an excellent addition for someone who loves their car dearly.

      This Product is Compared With Others Like It

      This is a review of the Minder Signal Blocking Car Key Pouch

      Minder Signal Blocking Car Key Pouch

       

      Technical Details
      Portable
      Yes
      Rating
      4.1/5
      Price
      £
      Hand held
      Yes
      Warranty
      No
      Brand
      Minder
      Dimensions
      19cm x 12 cm
      Washable
      No
      Next Day Delivery
      No

      The Minder Signal Blocker pouch is a protective storage case that is lined with a specialist material that doesn't allow signals to pass through it. Made from a durable material that is easy to wipe clean. This little pouch is cheap and although comes as a pack of one is affordable enough to buy enough to keep the whole family protected.

      Minder Signal Blocking Phone

      Measuring 19 cm by 12 cm, it is large enough to fit any mobile phone or any make/model of car keyless key fob. This pouch is invaluable when it can prevent data fraud passed through wireless connection as well as being able to drive of with your car. It comes in a variety of different colours from dark to brightly coloured so that you don't loose it.

      Minder signal blocking colours

       

      Pros
      • Cheap
      • Prevents theft
      • Variety of colour changes
      • Prooduct showcased on rip off britain
      • Next day delivery with Amazon Prime
      • Great stocking filler
      • Easy to purchase more than one
      Verdict

      Cheap and cheerful product that does the job designed to do.

      This is a review of the Alpha Shield Key Protection Blocking Case

      Alpha Shield Key Protection Blocking Case

       

      Technical Details
      Portable
      Yes
      Reflective
      No
      Rating
      2.6/5
      Price
      ££
      Accessories included
      No
      Hand held
      Yes
      Warranty
      No
      Vehicle
      car
      suv
      truck
      van
      Brand
      Alpha Shield
      Dimensions
      8.3cm x 6.2cm x 2.6cm:
      Weight
      18 g
      Washable
      No
      Next Day Delivery
      Yes

      The Alpha Shield Signal blocking case is a hard box made from aluminium. Although it is not convenient enough to just fit in your pocket it is small making it easy to stow in a specific "key" cupboard or in your glove box. It is also surprisingly lightweight, from the picture it looks quite heavy when infact it is only 15g.

      Alpha Shield Key Protection Blocking

      Shaped a little like a small sandwich box, its easy to clean and makes it robust against dropping. As an actual sealed case this should block the signal completely when the box is shut. It does recommend waiting at least 30 seconds before expecting the box to work. The case also is only limited to the makes of cars it will work on. Car key fobs that will not work on Ford, Jeep, Mazda and SEAT, information is a little misleading as in another sentence it says all cars makes are suitable.

      The box could do with being bigger as if you have two car fobs they will not fit in this box together so you will need to buy another box and two of these boxes them makes this a slight inconvenience to stow. It also only can be used for car fobs and bank cards but not any phones which is a shame.

       

      Pros
      • Hard case
      • Small and lightweight
      • Convenient shape
      • Easy to clean
      • Next day delivery with Amazon Prime
      Cons
      • Won't fit in your pocket
      • Not suitable for some makes and models of car fobs
      • Too small for some car fobs
      • Two boxes to accommodate both your main and spare keys takes up space
      • Not the cheapest available
      • Cannot fit a phone in
      Verdict

      The Alpha Shield box is small, compact and only works for a number of car fobs and unlike other security signal pouches we have reviewed, doesn't work with smart phones.

      This Product is Compared With Others Like It