SALE Underwater WiFi Extension Cable for GoPro HERO3 and HERO4

For our *NEW* Underwater WiFi Extension Cable for use with HERO4, HERO5, HERO6, HERO7 and other wifi enabled Action Cameras: CLICK HERE

The Underwater WiFi Extension Cable extends the WiFi and Bluetooth signal above the water to allow you to perform any function that you can normally do using these signals, such as viewing a live preview using the GoPro App. The wet end of the Underwater WiFi cable is molded into a custom backdoor that snaps into the waterproof GoPro Housings.

  • AS SEEN ON CNET! GoPro used our Underwater WiFi Cable to broadcast a livestream of a shark dive via Periscope. Read the full article hereRead about how to broadcast live on Periscope with your GoPro here.

    Check out our Underwater WiFi packs here which includes an underwater light, professional carry case and accessories to attach your camera to a pole for underwater inspections.

    Also check out our blog post on how to use your GoPro Underwater WiFi Cable to check on your crab pot.

    The Underwater WiFi Extension Cable extends the use of WiFi and Bluetooth control of GoPro HERO3, HERO3+ and HERO4 cameras that are underwater.

    (Video below shows GoPro Dive Housing version of WiFi Cable)

    The wet end of the link is a custom backdoor which clips to the GoPro Housings (the housing is not included). Our 20ft to 125ft lengths are molded into a GoPro Standard Housing backdoor that is rated to a depth of 40m (131ft). For use at greater depths, our longer lengths are molded into a backdoor that fits the GoPro Dive Housing rated to a depth of 60m (196ft). Just turn on the camera WiFi, close the back of the housing, and drop the camera into the water. No connection to the camera is necessary. The interface to the camera is wireless.

    At the dry end, the WiFi Extension Cable interfaces wirelessly with any wireless device such as an Android phone or tablet or iPhone or iPad or the GoPro WiFi Remote. The GoPro App or similar software to provide real time video monitoring and complete control over the camera settings.


    Disclaimer: As with regular GoPro waterproof housings, it is prudent to test the housing underwater before putting your camera in every time you use it. Our warranty does not cover incidental damage. Always keep the O-ring and edges of the case clean. Always inspect them before every use. Do not use silicone or other grease on the O-ring.

    wifiEnables WiFi and Bluetooth underwater

    • WiFi and Bluetooth signals are extended above water to allow you to control your GoPro in any way you normally would using the Bluetooth or WiFi signal.

    bubble_chartWaterproof up to 60 meters

    • The wet end of the WiFi Extender is a custom backdoor which clips to the GoPro Standard Housing for our shorter lengths and the GoPro Dive Housing for our longer lengths. The GoPro Standard Housing is rated to a depth of 40 meters and the GoPro Dive Housing is rated to a depth of 60 meters.

    sortMultiple cable lengths available

    • We offer many lengths ranging from 12 to 300 feet so you can get the appropriate cable to suit your needs.
    • An inline connector near the dry end makes it possible to detach the dry end to thread the cable through a protective pipe or handheld pole.

  • Camera

    Compatibility ( Y / N )


    HERO5 Session

    HERO4 Black

    HERO4 Silver

    HERO4 Session

    HERO+ WiFi (2014)


    HERO3+ Black

    HERO3+ Silver

    HERO3 Black

    HERO3 Silver

    HERO3 White



    *HERO+ WiFI cannot be removed from the Standard sized housing so cannot be used with WiFi Extension Cable lengths longer than 125ft that clip into the GoPro Dive Housing.

  • Frequently Asked Questions

    How do I replace the standard backdoor with the wet end of the Underwater WiFi Extension Cable?

    The standard backdoor of the GoPro Housing can be removed and replaced with the wet end of the Underwater WiFi Extension Cable. If you look at the bottom of the hinge holding the backdoor to the front of the housing, you should notice that it is slotted. The backdoor of the GoPro housing snaps off of the camera housing if you open the backdoor all the way and rotate or pull the backdoor downward. No tools are required. This video shows how to easily unclip the standard backdoor from the GoPro Housing:

    How do I tell if I have a GoPro Dive Housing or Standard GoPro Housing?

    All GoPro HERO3 and HERO4 cameras currently ship with the Standard Housing, which is slightly smaller than the Dive Housing and fits of 12ft to 125ft lengths of Underwater WiFi Extension Cable. Our cable lengths of 150ft and above do not fit the Standard Housing and require a Dive Housing.

    Please compare your camera housing to these pictures to ensure you have what you need for your project. Underwater WIFI Extension Compatibility

    What is the maximum cable length possible?

    We have tested cables to 100 meters (328 feet) with excellent results using a Nexus 5 as the controller. As the cable gets longer, the signal will be weaker and results will depend on the presence of interfering signals and the quality of the antenna in the controlling device.

    What is the maximum depth?

    Our longer lengths of Underwater WiFi Extension Cable fit the GoPro Dive Housing which GoPro rates to a depth of 60 meters. We strongly recommend you test the housing and backpack with no camera every time you use it. A small scratch, dirt, grease or hair can be enough to allow water in. Stress may have affected the cable or the exit point. We do not test each backpack before shipping and do not know the maximum depth before failure for your unit.

    How far can the tablet or phone be from the dry-end antenna?

    It depends on the cable length, orientation of the dry-end antenna, the type of the antenna in the controlling device, and the interference from other signals. It will work for a few feet in most cases, but the closer the better.

    How do I determine the best orientation for the adapter relative to my phone?

    There are many apps available that show the WiFi signal strength. We use WiFi Analyzer.

    How do I attach the dry end to the monitoring device?

    The dry end interface can be attached to the back of the phone or tablet using velcro or 3M double sided removable mounting squares.

    What have people used your WiFi Extender for?

    An example of the Underwater WiFi Extender in action:Underwater WIFI Extender

    A HERO3 camera attached to a 15 foot fiberglass Bream pole using a handlebar mount is being used to do a hull inspection of this sailboat. A golf ball retriever also makes a good extendable pole for mounting the camera. The video preview allows the user to select snapshots and take short close up videos of delamination, osmosis damage, algae growth or barnacles.

    What do your customers say?

    Just want to send you guys my sincere thanks for providing the Go-pro wifi extender equipment last weekend, we successfully spotted the DJI Phantom drone that was lost in a lake with 10 inch visibility and equipment worked flawless under water!

    Thanks So Much! -MB

  • General support can be found on our Support pages here.

    Also read the FAQ's tab for more information.

Product Code: WFEXT