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User manual

Halden Duo 4K, how to fit it and use it.

Fitting it, the rear camera, parking mode, the phone app and what to do after an incident. Search for a word, or tap a chapter.

Halden Duo 4K HD-DUO-4K · 14 chapters

01

What's in the box

Check everything is here before you start. Keep the box: it is the easiest way to send anything back.

In the box

  • 1Halden Duo 4K dash cam, with its GPS mount
  • 2Rear camera on a 6 m cable
  • 3Hardwire kit for parking mode, with fuse taps
  • 4Car charger cable for the cigarette lighter socket
  • 5Cable clips
  • 6Trim tool, for tucking cables behind the trim
  • 7Static windscreen stickers
  • 8Quick-start guide
  • 9User manual
  • 10USB card reader

Not in the box: the SD card

The camera records to a microSD card. A card is only in your order if you added a Halden 64GB or 128GB card. If you did, it is formatted and ready to record.

If you use your own card, it must be a Class 10, U3 microSD card. See chapter 03 for which card to use and how to format it.

What each part is for

  • The dash cam films the road ahead in 4K and shows the picture on its 3.2-inch screen.
  • The GPS mount holds the camera on the windscreen and adds your speed and location to the footage.
  • The rear camera sticks inside the top of the rear window and films the road behind in 2.5K.
  • The car charger cable is the quick way to power it: plug it into the cigarette lighter socket and drive.
  • The hardwire kit powers it from the fuse box instead. You need it for parking mode, which watches the car while it is parked.
  • The USB card reader lets you copy footage from the SD card to a computer.
Missing something?

Write to [email protected] with your order number and a photo of the box contents. We send any missing part free of charge.

02

The camera at a glance

Where the buttons, ports and lights are, and what the screen shows.

The buttons

There are five buttons. The power button is on one end of the camera. The other four sit in a row along the bottom edge, under the screen.

PowerPress and hold to switch on or off. The camera also switches on and off by itself with the ignition.
Menu / ModeA short press switches between video, photo and playback. Press and hold it to open the settings menu.
Up and DownMove through menus and clips. While recording, Up locks the current clip so it is never recorded over.

The fifth button is OK. It confirms a choice in the menu, plays a clip in playback, and pauses or restarts recording on the main screen.

The ports

The ports sit together on the other end of the camera, opposite the power button.

  • USB-CPower in. Plug in the car charger cable or the hardwire kit here.
  • SDThe microSD card slot. The card goes in with its gold contacts facing the screen, and clicks in.
  • AV-INThe rear camera plugs in here.

The lights

  • The light in the power button shows the camera has power.
  • A red dot flashes at the top of the screen while it records. If the dot is not flashing, it is not recording.
  • A padlock on the screen means the clip being recorded is locked.

What the screen shows

  • Top left: how long the current clip has been recording, and the resolution, 4K + 2.5K when both cameras are working.
  • Top right: icons for the SD card, Wi-Fi, GPS, parking mode and the microphone.
  • Your speed and direction, once GPS has found its position.
  • The time and date, set by GPS.
  • When Wi-Fi is on, the camera's Wi-Fi name and password.
The screen turns off by itself

The screen goes dark after a minute so it does not distract you at night. The camera keeps recording. Press any button to wake the screen. You can change this in chapter 09.

03

Before you start

Two things to check before you fit anything: the SD card and your car's power.

Which SD card to use

The camera writes 4K footage all the time, so the card matters more than anything else. A slow or worn card is the most common reason a dash cam stops recording.

  • Use a microSD card, Class 10 and U3. Look for the U with a 3 inside it on the card.
  • We recommend 32 to 256 GB. The camera supports cards up to 512 GB.
  • A card made for dash cams or security cameras, often called high endurance, lasts longest.
  • Avoid very cheap cards and cards from your old phone. They may work for a week, then fail.

A Halden 64GB or 128GB card is tested in this camera and arrives formatted and ready.

Put the card in

  1. Switch the camera off

    Never put a card in or take it out while the camera is on.

  2. Push the card into the SD slot

    Gold contacts face the screen. Push it in until it clicks. Push it again to release it.

  3. Format the card in the camera

    Switch on, open the menu, choose Format, then OK. Formatting wipes the card and sets it up for this camera. Do it with every new card, even a new one from the packet.

12 V cars only

The Halden Duo 4K is made for cars with a 12 V supply, which is almost every car and small van.

Lorries, coaches and some vans run on 24 V. Plugging the camera straight into 24 V damages it. In a 24 V vehicle, fit a 24 V to 12 V converter first.

Always use the cable in the box. Other chargers and cables can give the wrong voltage and make the camera restart.

Check the rear cable is long enough

The 6 m rear cable fits cars up to about 4.6 metres long, running along the roof lining from the rear window to the front. That covers most hatchbacks, saloons and estates.

If your car is longer, write to us before you start and we will help you work out what you need.

What you need for fitting

  • Everything else is in the box: cable clips, trim tool and stickers.
  • A dry microfibre cloth and some glass cleaner.
  • For the hardwire kit only: a circuit tester, which costs a few pounds from any car parts shop, and your car's handbook to find the fuse box.
04

Fitting it in 20 minutes

Front camera first, powered from the cigarette lighter socket. You can hardwire it later.

Where it goes

The best place is high up in the middle of the windscreen, tucked behind the rear-view mirror on the passenger side.

  • From the driver's seat, the mirror hides most of it, so it does not block your view.
  • Keep it inside the area the wipers clear, so it sees through clean glass in the rain.
  • Keep it below any dark tinted band or dotted area at the top of the glass.
  • Keep it clear of the sensor box behind the mirror, if your car has one.

  1. Find the spot with the car switched on

    Plug the car charger into the cigarette lighter socket and the camera, and switch the ignition on. Hold the camera against the glass and look at the screen. You want the road in the middle and only a sliver of bonnet at the bottom.

  2. Clean the glass

    Wipe the spot with glass cleaner, then dry it fully with a microfibre cloth. Grease and dust stop the sticker holding. In cold weather, warm the glass with the heater first.

  3. Put on the static sticker

    Peel the backing off one static sticker and smooth it onto the glass with your thumb, pushing any bubbles to the edge. The sticker clings by itself, with no glue. It lets you take the mount off later without leaving a mark on the glass.

  4. Stick the mount to the sticker

    Peel the film off the adhesive pad on the mount. Press the mount firmly onto the middle of the sticker and hold it for 30 seconds. Leave it for an hour before driving if you can, so the pad sets.

  5. Clip the camera on and aim it

    Slide the camera onto the mount until it clicks. Tilt it so the horizon sits just above the middle of the screen. Point the lens straight ahead, not at the sky.

  6. Route the cable along the roof lining

    Starting at the camera, push the cable into the gap between the windscreen and the roof lining with the trim tool. Work across to the passenger side. Leave a small loop at the camera so the cable does not pull on it.

  7. Run it down the A-pillar

    The A-pillar is the post between the windscreen and the front door. Tuck the cable behind the rubber door seal, down the side of the pillar trim. Do not pull the pillar trim off, and do not run the cable across the front of the airbag behind it.

  8. Along the footwell to the socket

    Tuck the cable under the edge of the dashboard or the side panel in the footwell, using the cable clips where it hangs loose. Plug it into the cigarette lighter socket. Push any spare cable out of sight, away from the pedals.

  9. Start the car and check

    Switch the ignition on. The camera starts and begins recording within a few seconds, with the red dot flashing. Check the picture once more. Job done.

Keep the cable clear

Never let the cable hang where it could catch your feet or the pedals, or run across the front of an airbag. Keep it behind the door seal and the trim, and away from the steering column.

Moving it later

To take the camera off, slide it off the mount. To move the mount, peel the static sticker off the glass. The sticker comes away clean. There are spare stickers in the box.

05

Fitting the rear camera

About 20 minutes more. The rear camera films the road behind through the rear window.

Where it goes

The rear camera sticks to the inside of the rear window, at the top, in the middle.

  • Put it high up, where the rear wiper clears the glass on the outside, if your car has one.
  • Place it between the heater lines on the glass, not on top of one.
  • Very dark tinted glass makes the rear picture darker at night. Pick the clearest part of the glass you can.

  1. Plug it in first and check the picture

    With the camera switched off, plug the rear camera cable into the AV-IN port on the front camera. Hold the rear camera in place and switch on. Check the rear view on the screen before you stick anything down.

  2. Clean the glass and stick it on

    Clean and dry the spot. Peel the film off the rear camera's adhesive pad and press it firmly onto the glass for 30 seconds, lens facing out through the window.

  3. Route the cable along the roof lining

    From the rear camera, tuck the cable into the edge of the roof lining with the trim tool. Run it along the side of the roof to the front, then across the top of the windscreen to the camera. The cable is long enough to stay hidden the whole way in most cars.

  4. Plug into the front camera

    Push the plug fully into the AV-IN port and leave a small loop so it does not pull. Switch on. The screen shows 4K + 2.5K when both cameras are working.

Hatchbacks, estates and SUVs

In a car with a tailgate, the rear window opens with the boot. The cable has to cross from the tailgate to the roof.

  • Run the cable through the hinge gap at the top of the tailgate, next to the hinge.
  • Or follow the rubber tube that carries the car's own wires from the roof into the tailgate, if you can feed it through.
  • Leave enough slack that the tailgate opens fully without pulling the cable. Open and close it a few times to check.

Saloons

In a car with a separate boot, the rear window does not move. Run the cable along the roof lining to the top of the rear window and stick the camera there.

Is the rear view upside down?

Some cars need the rear camera fitted the other way up to reach the glass. If the picture is upside down, you do not need to refit it.

Open the menu, choose Rear camera flip, and switch it on. The picture turns the right way up.

Plug and unplug with the camera off

Only plug in or take out the rear camera when the front camera is switched off. Otherwise the rear picture may not show until you restart.

06

Parking mode and the hardwire kit

Parking mode keeps watch while the car is parked. It needs the hardwire kit, which powers the camera from the fuse box.

What parking mode does

When you switch the engine off, the camera keeps recording in time-lapse, at 1 frame a second. An hour of parked time plays back in about two minutes and uses very little of the card.

If someone bumps the car while it is parked, the camera locks that clip so it is not recorded over.

When you start the car again, it goes back to normal recording by itself.

Why it needs the hardwire kit

Most cigarette lighter sockets switch off with the ignition, so the camera stops when you park. The hardwire kit connects the camera to the car's fuse box, so it can keep recording when the engine is off.

There is no battery inside the camera to keep it going on its own. That is by design: there is nothing inside to swell or fail in a hot car.

Your car battery is protected

The hardwire kit has a low-voltage cut-off. It watches your car battery while you are parked. If the battery gets low, it switches the camera off, so there is always enough left to start the car.

If your car battery is old or weak, or the car will sit for more than a few days, switch parking mode off in the menu.

What the three wires do

The hardwire kit has three wires. Each one is labelled on the kit.

  • BATTPermanent live: a fuse that has power all the time, even with the ignition off. This keeps the camera on when parked.
  • ACCIgnition live: a fuse that only has power with the ignition on. This tells the camera when you start and stop the car.
  • GNDEarth: a bare metal bolt on the car's body or frame.

Fitting the hardwire kit

  1. Find the fuse box

    The inside fuse box is usually at the end of the dashboard on the driver's side, in the passenger footwell, or under the steering wheel. Your car's handbook shows where it is and what each fuse does.

  2. Find a permanent live fuse

    With the ignition off, use the circuit tester on the fuses. A fuse that lights the tester now is a permanent live fuse. Interior lights, the hazard lights or the central locking are often on one.

  3. Find an ignition live fuse

    Switch the ignition on and test again. A fuse that only lights the tester with the ignition on is an ignition live fuse. The cigarette lighter socket or the radio is often on one.

  4. Fit the fuse taps

    Pull out each fuse you chose. Put it into the fuse tap's lower slot and the small fuse from the kit into the upper slot. Push the tap into the empty fuse slot, with the tap's wire on the side of the slot that has no power when the fuse is out. Use the circuit tester to find that side.

  5. Connect the wires

    Join the kit's BATT wire to the tap in the permanent live fuse, and the ACC wire to the tap in the ignition live fuse. Crimp or push each connector on firmly.

  6. Connect the earth

    Loosen a bare metal bolt on the car's body near the fuse box. Slide the GND ring under it and tighten it again. It must touch bare metal, not paint or plastic.

  7. Route the cable to the camera

    Run the kit's USB-C cable up the A-pillar and along the roof lining, the same way as the car charger cable in chapter 04. Plug it into the camera's USB-C port in place of the car charger cable.

  8. Test it

    Switch the ignition on: the camera starts and records. Switch it off: after a few seconds the camera tells you it is going into parking mode. If it just switches off, swap the BATT and ACC taps, or check the earth.

Leave alone the fuses that matter

Never use a fuse for the airbags, the brakes, the engine management or the steering. Use the fuse rating printed on the kit's small fuse, never a bigger one.

In a hybrid or electric car, use only the 12 V fuse box inside the cabin. Never touch anything with orange cables.

Not sure? Ask an auto electrician

If you would rather not touch the fuse box, any auto electrician can fit the hardwire kit in under an hour. Show them this chapter.

Your car's warranty

Fuse taps plug into the fuse box without cutting or joining any of the car's wires, and they come out again cleanly. In normal fitting this does not affect your car's warranty.

07

Recording, locking and finding a clip

It records by itself every time you drive. Here is how it keeps the clips that matter.

It records every journey by itself

When the car starts, the camera switches on and starts recording within a few seconds. When the car stops, it saves the last clip and switches off, or goes into parking mode if it is hardwired.

You do not need to press anything. Check the red dot is flashing when you set off, and that is it.

Loop recording

The camera saves the footage in short clips. When the card is full, it records over the oldest clip that is not locked. You never need to clear the card to keep it recording.

The clip length is 1 minute by default. You can change it to 3 or 5 minutes in the menu. Short clips are easier to find and to send.

Locked clips are kept

  • Bump: if the camera feels a knock or a sudden stop, the G-sensor locks that clip by itself.
  • By hand: press Up while it records to lock the current clip. Do this if you see something you want to keep, even if your car was not touched.
  • A padlock shows on the screen when a clip is locked. Locked clips are kept in their own folder and are not recorded over.

Locked clips take up space. If the card fills with locked clips, there is less room for new footage. Copy the ones you need and delete the rest now and then.

How long a card lasts

A rough guide, recording front and rear together, front in 4K, before the oldest footage is recorded over:

64 GB
About 2 to 3 hours of driving
128 GB
About 4 to 6 hours of driving
256 GB
About 8 to 12 hours of driving

Parking mode time-lapse uses far less space: a 64 GB card holds well over a day of parked time.

Most people drive less than two hours in a day, so even a 64 GB card keeps the last day of footage. If something happens, lock the clip or copy it the same day.

Finding a clip on the camera

  1. Open playback

    Press Menu / Mode until you reach playback. Recording pauses while you are in playback.

  2. Choose a folder

    Normal clips, locked clips, parking clips and photos are kept apart. Front and rear clips are kept apart too.

  3. Find the time

    Clips are named and listed by date and time. Use Up and Down to move, and OK to play.

  4. Go back to recording

    Press Menu / Mode to leave playback. Check the red dot is flashing again.

Finding a clip on a computer

Switch the camera off and take out the card. Put it in the USB card reader from the box and plug the reader into a computer.

The clips are in folders on the card, named by date and time. They are .TS video files. If your computer does not play them, a free video player such as VLC does.

Copy the clips you want to keep to the computer. Do not delete or rename files on the card from the computer. Use the camera to manage the card instead.

Photos

On the main screen, a short press of Menu / Mode switches to photo. Press OK to take a still. Switch back to video and check the red dot before you drive.

08

The free phone app

Watch, download and share footage on your phone, without taking the card out.

Get the app

The free phone app works on iPhone and Android. Its name and a QR code to download it are on the quick-start guide in the box. Install it before you start.

The app talks to the camera over the camera's own Wi-Fi, not the internet. You only need to be in or next to the car.

Connect to the camera

  1. Turn on the camera's Wi-Fi

    With the camera on, open the menu and switch Wi-Fi on. The screen then shows the camera's Wi-Fi name and password.

  2. Join that network on your phone

    Open your phone's Wi-Fi settings, choose the camera's network and type the password from the screen.

  3. Stay connected

    Your phone may say the network has no internet. That is normal. Choose to stay connected. On iPhone, allow the app to find devices on your local network when it asks.

  4. Open the app

    Open the app and add the camera. You see the live view from the front and rear cameras.

Download a clip to your phone

  1. Open the file list

    In the app, open the list of clips. Choose normal, locked or parking, and front or rear.

  2. Find the clip

    Clips are listed by date and time. Tap one to play it on your phone.

  3. Download it

    Tap download. The clip is saved in the app first. Then save it to your phone's photos or files from inside the app.

Share it with your insurer or the police

Once the clip is on your phone, you can share it like any other video: by email, a messaging app, or an upload link from your insurer or the police.

4K clips are large. A one-minute clip from the front camera can be a few hundred megabytes. For big files, share a cloud storage link, or copy the clip on a computer with the card reader. See chapter 10.

If the phone keeps dropping the connection

  • Turn off the setting that switches your phone to mobile data when Wi-Fi has no internet. It is called Wi-Fi Assist on iPhone and has a similar name on Android.
  • Forget the camera's network on your phone, then join it again.
  • Switch the camera off and on, then connect again.
  • More fixes are in chapter 12.
Wi-Fi off while you drive

You can leave Wi-Fi on, but switching it off when you are not using the app keeps the camera cooler and the screen clearer. Set things up while parked, never while driving.

09

Settings worth knowing

Press and hold Menu / Mode to open the menu. Use Up and Down to move, OK to choose. Most people only change a few of these.

If the menu does not open

Some settings can only change when the camera is not recording. Press OK to pause recording, then press and hold Menu / Mode. When you leave the menu, check the red dot is flashing again.

Date and time
The GPS sets the time and date by itself once it finds its position. You only need to set your time zone once: GMT in winter and GMT+1 during British Summer Time. Check it when the clocks change in spring and autumn. The right time on your footage makes it easy to find a clip.
Speed units and speed stamp
Choose mph for speed. The speed and location show on the footage by default. You can turn the speed stamp off if you prefer, and keep the location.
Clip length
1, 3 or 5 minutes. We recommend 1 minute: clips are quicker to find and small enough to send.
G-sensor sensitivity
How hard a bump has to be before the camera locks the clip by itself: low, medium or high. Start on low or medium. High can lock a clip at every pothole and speed bump, which fills the card with locked clips.
Parking mode and parking sensitivity
Parking mode on or off, and how hard a knock to the parked car has to be to lock a clip. Parking mode only works with the hardwire kit (chapter 06). Medium suits most cars. In a busy street, low avoids locking a clip every time a lorry passes.
Sound recording
On or off. With it on, the footage records sound inside the car, including what you say. Switch it off if you prefer, or if you carry passengers who would rather not be recorded.
Screen off
The screen turns off after 1 minute by default, and the camera keeps recording. You can choose a different time, or keep the screen on. Off is better at night.
Exposure, for number plates
Exposure sets how bright the picture is. The default suits most driving. If number plates look white and washed out at night under street lights, set exposure one or two steps lower, such as -0.3 or -0.7. If footage looks too dark, set it a step higher.
Light frequency
Set it to 50 Hz. This stops street lights and tunnel lights flickering in your footage.
Rear camera flip
Turns the rear picture the right way up if you had to fit the rear camera upside down (chapter 05).
Wi-Fi
Switches the camera's Wi-Fi on or off for the phone app (chapter 08).
Format
Wipes the SD card and sets it up fresh. Copy anything you want to keep first, including locked clips. Format once a month to keep the card healthy (chapter 11).
Reset to default
Puts every setting back as it came from the box. Try it if the camera behaves oddly after changing settings. It does not wipe the card.
Version
Shows the camera's software version. We may ask for it if you write to us.
Change settings while parked

Never change settings or use the app while you are driving. Set it up once, parked, and leave it.

10

Sending footage after an incident

What to do in the first minutes, and how to get the clip to the people who need it.

At the scene

  1. Make sure everyone is safe

    Safety first. The camera keeps recording while you deal with what matters.

  2. Lock the clip

    If the camera felt the impact, it has already locked the clip. If not, press Up to lock it. A padlock shows on the screen.

  3. Note the time and place

    Write down or remember the time, the road and what happened. The time on your footage helps you find the right clip quickly later.

  4. Keep the camera recording

    Leave it running. Footage of the other car's number plate and what happened next can help as much as the moment itself.

Save the footage the same day

Copy the clip off the card as soon as you can, before more driving fills the card. Use the phone app (chapter 08) or the card reader and a computer (chapter 07).

Copy both the front and the rear clips, and the clip before and after, so the full story is there.

Do not edit it

  • Send the original file, as the camera saved it, with its time, date, speed and location on the footage.
  • Do not trim, crop, slow down, add music or add captions. An edited clip is easier to question.
  • Keep your own copy of the original, on a computer or in cloud storage, until the matter is closed.

How to send it

  • To your insurer: tell them you have footage when you report the claim. Most give you an upload link or an email address for files.
  • To the police: most police forces have an online form on their website for road footage. Give the time, date and place with your upload.
  • Large files: upload the clip to cloud storage and send the link. Most email services cannot send a 4K clip as an attachment.
Need help finding or copying a clip?

Write to [email protected]. Tell us the date and roughly the time, and we will walk you through it.

11

Care, heat and winter

A few minutes a month keeps it recording every journey.

No battery inside

There is no battery inside the camera to swell, leak or fail in a hot car. A small capacitor gives it just enough power to save the last clip when you switch off. A tiny coin cell keeps the time and your settings. Neither one runs the camera.

That is why the camera only works with the car's power. It is also why it copes with a summer dashboard.

Summer heat

The camera works from -20 °C to 70 °C. A car parked in the sun can get very hot, and that is fine.

  • A sunshade keeps the whole cabin cooler. Fold it in around the camera.
  • On a very hot day the camera may take a moment to start. That is normal.
  • Never cover the camera with a cloth or tuck it into the sunshade so it cannot breathe.

Winter

  • The camera works down to -20 °C.
  • Clear the frost and mist from the inside and outside of the windscreen before you drive. The camera can only see through clear glass.
  • In very cold weather the screen can be slow to wake for the first minute. Recording is not affected.

Keep the lens and glass clean

Every few weeks, wipe the lens on the front and rear cameras with a dry microfibre cloth. Clean the inside of the glass in front of each lens too. Heat and plastics leave a thin film on the inside of the glass, which makes night footage hazy.

Do not use household sprays, solvents or kitchen roll on the lens.

Keep the card fresh

  • Format the card in the camera once a month (menu, Format). Copy anything you want to keep first.
  • Recording all the time wears a card out. Replace it every year or two, or straight away if you see card errors.
  • Halden SD cards are covered for 1 year.

Check it now and then

Once a week, glance at the screen as you set off. The red dot should be flashing and the screen should show 4K + 2.5K. Once a month, play back a clip from each camera to check both are recording clearly.

Do not open it

There are no parts inside you can service. Opening the camera damages its seals and is not covered by the guarantee.

12

Troubleshooting

Most problems come down to the SD card or the power. Start there.

It will not turn on
  • Check the cable is pushed fully into the camera's USB-C port and into the cigarette lighter socket.
  • Switch the ignition on. Many sockets only have power with the ignition on.
  • Try the socket with another device, or check its fuse.
  • Use only the cable from the box. Other cables may not carry enough power.
  • If it is hardwired, check the ACC and BATT taps and the earth (chapter 06).
  • Still nothing: write to us with your order number.
It keeps restarting
  • This is almost always the SD card or the power.
  • Format the card in the camera. If it still restarts, try a different Class 10, U3 card.
  • Use only the cable from the box, plugged straight into the socket, not through a splitter or a USB adapter.
  • If it is hardwired, check the connections and the earth bolt are tight.
It says card error, or asks to format
  • Format the card in the camera (menu, Format).
  • If the message comes back, the card is worn, too slow or fake. Replace it with a Class 10, U3 card from a trusted brand, 32 to 256 GB.
  • Never take the card out while the camera is on.
It stopped recording, or the red dot is not flashing
  • Press OK to start recording again.
  • Check the card is in and not full of locked clips. Copy and delete locked clips you do not need, or format the card.
  • If you are in the menu or playback, leave it. Recording pauses while you are there.
The rear camera picture is black or flickering
  • Switch the camera off. Unplug the rear camera from AV-IN and push it back in firmly. Switch on again.
  • Check the cable is not pinched in the tailgate hinge or under a trim clip, all along its length.
  • If the picture is upside down, turn on Rear camera flip in the menu.
  • Still nothing: write to us. The rear camera is covered by the 2-year guarantee.
The app will not connect
  • Check the camera's Wi-Fi is switched on in the menu.
  • Join the camera's network in your phone's Wi-Fi settings first, then open the app.
  • When the phone says the network has no internet, choose to stay connected. Turn off Wi-Fi Assist or your phone's similar setting.
  • On iPhone, allow the app local network access in the phone's settings.
  • Forget the network on the phone, restart the camera and the phone, and connect again.
GPS not found, or no speed on the footage
  • The first time, GPS can take a few minutes to find its position. Park outside, away from tall buildings, with the engine on, and wait.
  • Check the camera is clicked fully onto the mount. The GPS is in the mount.
  • Some windscreens have a heat-reflecting coating that blocks GPS. If the GPS never finds a position, try moving the camera nearer the dotted area behind the mirror, where the glass is often clear of it.
Footage is too dark, or plates are washed out at night
  • Clean the lens and the inside of the glass in front of it.
  • If plates look white and washed out, set exposure one or two steps lower (chapter 09).
  • If everything looks dark, set exposure a step higher, and check the glass in front of the lens is not tinted.
  • Check the light frequency is set to 50 Hz.
Will it flatten my car battery?
  • With the car charger cable, no: it only takes power while the socket has power, which in most cars is only with the ignition on.
  • If your socket stays live with the engine off, unplug the camera when you leave the car for a few days.
  • With the hardwire kit, the low-voltage cut-off switches the camera off before the battery gets too low to start the car.
  • If the car will sit unused for more than a few days, or the battery is old, switch parking mode off.
The time on the footage is wrong
  • Check the time zone in the menu. GPS sets the time but not the time zone.
  • If the time resets every time you start the car, write to us. The coin cell that keeps the time may need checking.
The mount will not stay on the glass
  • Clean the glass and dry it fully, then fit a fresh static sticker.
  • In cold weather, warm the glass with the heater first.
  • If the mount's adhesive pad has lost its grip, write to us and we send a new one.
Still stuck?

Write to [email protected] with your order number and what is happening. A photo of the screen or a short video helps. Most problems are sorted from that one message.

13

Specifications

The Halden Duo 4K in numbers.

Model
Halden Duo 4K (HD-DUO-4K)
Front camera
4K, 3840 x 2160 at 25 frames a second
Rear camera
2.5K, 2560 x 1440
Viewing angle
170° front, 140° rear
Lens
F1.8, glass elements
Screen
3.2-inch
GPS
Built in, in the mount: speed and location on the footage
Wi-Fi
To the free phone app for iPhone and Android
Impact lock
G-sensor locks the clip after a bump, 3 sensitivity levels
Recording
Loop recording, 1, 3 or 5 minute clips, starts and stops with the ignition
Parking mode
Time-lapse at 1 frame a second, with the hardwire kit (in the box)
Sound
Built-in microphone, can be switched off
Photos
12 MP stills
File format
.TS video
Storage
microSD, Class 10, U3. 32 to 256 GB recommended, up to 512 GB supported. Not included unless added to your order
Power
USB-C, from the car charger cable or the hardwire kit. 12 V cars only
Battery
No battery inside. A capacitor saves the last clip; a coin cell keeps the time and settings
Working temperature
-20 °C to 70 °C
Rear cable
6 m
Size
8.5 x 3.2 x 3.5 cm, 6.5 cm tall with the mount
In the box
Dash cam with GPS mount, rear camera with 6 m cable, hardwire kit, car charger cable, cable clips, trim tool, static stickers, quick-start guide, user manual, USB card reader
Cover
2-year guarantee on the dash cam and rear camera. SD cards 1 year

Recycling

This symbol means the camera, the rear camera, the cables and the coin cell inside must not go in household waste. Take them to a collection point for electrical waste, or write to us and we tell you how to return them. Recycling keeps harmful materials out of the ground and lets the materials be used again.

14

Guarantee and support

Write to us any time. A real person answers, 24 hours a day, 7 days a week.

How to reach us

Email [email protected]. Support is by email, 24 hours a day, 7 days a week.

To help us sort it in one reply, include:

  • Your order number.
  • What is happening, and when it started.
  • A photo of the screen or a short video of the problem, if you can.

Your 2-year guarantee

The dash cam and the rear camera are covered for 2 years from delivery. If either one develops a fault, we repair it or send a replacement, and we pay the postage both ways.

It does not cover accidental damage, theft, damage from a 24 V supply used without a converter, cables other than the ones in the box, or a camera that has been opened.

The Lifetime Warranty

If you added the Lifetime Warranty to your order, the dash cam and the rear camera are covered against faults for as long as you own them, with a repair or a replacement. It does not cover accidental damage or theft.

SD cards

Halden SD cards are covered for 1 year from delivery. If a card fails, we replace it.

60-day money-back guarantee

You have 60 days from delivery to decide. If the Halden Duo 4K is not for you, email us first. We send you a return address and a returns reference by email, and refund you in full within 14 days of receiving it back. Keep the box.

On a change of mind you pay the return postage. If the camera is faulty, we pay it.

Before you send anything back

Please email us first and wait for the return address and returns reference. Most problems are fixed with a setting or a new card, often in one message.

Still stuck? Write to us.

A real person answers, any hour, every day. Your Halden Duo 4K is covered by a 2-year guarantee, front and rear cameras both, with 60 days to decide.

Write to us