You can help fund Techmoan with a donation

Click to visit  

SEARCH BOX: Searches this website


For more info on this - click on "About' at the top of the page. 


Techmoan never approaches a company asking for review samples.



Articles by Category


Techmoan Merchandise at TeeSpring


Pick of the Camera Reviews

(Click the pictures for reviews & links) 


Yi 2 - Best Budget 4K 

Gitup Git2 (My Pick)

Xiaomi Yi

Dazzne P2

DR02 D - Best Budget Dual Cam

Yi Ultra 2.7K
Mobius (also works as a Dashcam)
Polaroid Cube+
Sena Prism Tube

My favourite USB battery power Pack

This is the excellent USB power pack I use when I travel.

2 x 2.1amp outputs. 8400mAh capacity.

Two digit Led display shows battery level


What SD CARD should I buy?

If you want an SD Card for your camera - these are the ones I use and recommend. 

I'd strongly recommend not to buy any SD cards off ebay - I've heard about too many issues with counterfeit cards - often sold on by unwitting resellers. My inbox regularly gets messages from people who bought a £150 camera then cheaped out and bought a £3 memory card on ebay - Then when it doesn't worth they blame the camera! It doesn't make any sense. Good memory is cheaper than it's ever been - see the links above.

A lot of HD cameras will not work properly with cards larger than 32GB (cards over 32GB are usually SDXC rather than the SDHC standard used by 32GB cards. SDXC cards use the ex-FAT system rather than FAT32 - in short they are a different standard). - so don't just buy the biggest card you can afford - read the specs in the manual to see what it accepts.


RECOMMENDED CARDS (for action cams - see dashcams below)

CLASS 10 UHS-1 CARDS (For HD Cameras)


U3 CARD (For 4K cameras)




The SD card in a dashcam is re-written over, more frequently than in other types of cameras. Some manufacturers void their guarantee if an SD card was used in a dashcam. So, no surprise, there are special High Endurance SD cards made just for's some.


VERY IMPORTANT. These links take you to the product, however Amazon have three different ways of selling. There's Amazon Direct - This means that you are only dealing with Amazon themselves, then there's other sellers that use Amazon's facilities - these show as Fulfilled By Amazon and finally there's Market Place sellers that advertise on Amazon, but operate independently.  I strongly recommend that you only use the first...the Amazon Direct - Sold By Amazon option. Even if it appears that you are paying a couple of £/$ more it is more than likely you are comparing the price of a real item against the price of a fake.

To give you an idea of the extent of the fake goods problem. In a 2016 survey by Apple - 90% of the 'Apple' chargers sold through Amazon - using the other the two methods..which includes the "Fulfilled by Amazon" option -  were found to be counterfeit....90%! 


« Belkin CarAudio Connect AUX with Bluetooth | Main | Liquid Image Ego Review - Part 2 »

A Car DVR with a wired rear camera

My Car DVR reviews seem to be quite popular, so I thought it was time to do another one. It takes something a bit different to get my attention with so many similar car cams available. This model does have the interesting feature of an additional wired rearview camera. The fact that the camera is compact and pretty cheap also counts in its favour.  

I hijack the beginning of the video review to explain why it’s really not possible for me to answer the (hundreds) of email requests I receive asking me to recommend a specific ‘best’ car camera. This will also apply in relation to the similar requests I often get regarding action cams. 

I really can’t tell people what camera to buy, any more than a car magazine would try and tell you what car you should drive. These reviews are produced only to help people to formulate a decision based upon their own very specific personal requirements. Please also bear in mind that everything I test is only used for a short period of time, I have no idea about the long term reliability of any of the products I review. 

Overall though, this seems to me like a pretty decent camera for the price, despite one or two relatively minor niggles. I paid approximately £50 for mine from this seller on eBay who despatched from the UK. If you want an up-to-date list of auctions, you can click This Link which will perform a search on eBay UK for you.

Some of the other eBay sellers stock a grey coloured model and some also come with a different style of adjustable rear camera. 

I have also found it for sale on DX.COM where it seems to be supplied with an additional suction cup mount

As always there seem to be a few variations of this camera around - so take a close look at any example screenshots shown in any adverts. The menus in mine appear as a bar along the bottom of the screen.  Here's an example of one where the OSD looks completely different, and I have no idea how this one performs (It also comes without the rear camera).


Download four clips here - Front & Back, Day & Night.

EmailEmail Article to Friend

Reader Comments (493)

Hey guys, i've been looking to buy a dash cam for a while and this one seems like the right one for me, i just don't need the rear camera. So i found this one:
Just wanted to make sure its the same as reviewed one just without the rear camera. Its says its a c900 but i wasn't sure a techmoans one.

August 7, 2013 | Unregistered CommenterJarrod

Hi Jarrod, looked at your c900 through the link you put on . To be honest "buy now $27 plus free shipping" sounds too good to b true. It does look very similar to the one I paid $98 for, but my one said it records H.264 MOV video and this one says AVI, your ones even a 1080p ($27?) and my ones a 720p. I've added a link (although its nearly a year old), you might like reading it before you buy.
I can't say it's a fake as I could be discrediting a legit seller but I paid $39 for my first dvr from cbwholesaler88 from eBay and after waiting over a month, eventually got refunded through PayPal as it was a scam.
You only get what you pay for!! Most time anyway!
Hope this helps :-)

August 7, 2013 | Unregistered CommenterColin

Yeah thinking about it is does seem too good to be true.
Looked back through the ad and saw this Video resolution: 1280x960 (HD) / 720x480 (D1) / 640x480 (VGA) Thatdoesn't seem right.
I think ill look through some more forums for what i want.
I just want a small camera thats half decent (don't really care about reading number plates), thats easy to hide and forget. Your auzzie yeah? I'm getting my p's next week and have a few friends that have had accidents so i thought about buying a cheap (~$40) camera just in case.
Thanks Jarrod

August 8, 2013 | Unregistered CommenterJarrod

Thought i would give you an update on how my cams going, Well that's me had camera for over a week now in full use with front and rear cams both working fine. Overwriting the existing files. (16gb class 10 sandisk ultra).Front video is pretty good quality for the price, although I did expect to b able to read reg plates of cars, e.g cars passing on lane right beside me,not just when stopped at lights bumper to bumper.
Still trying to figure out the motion sensor, I switch on using power(side) button, pause video then put motion on ,pressing the triangle for three secs. Battery doesn't seem to last 5 mins, don't know if I'm doing something wrong,shutdown time is set to off and display goes of after 1 min? What's the best way to charge it? Also in menu , under auto-record there's an option for off,on and charge video? And exposure (also in settings menu)what setting is best for this?? does it make any difference? Its a slight bit different menu-wise than the one techmoan reviewed as it hasnt any option for 30/60 fps ( although i would only b using 30fps anyway).
Any help would b appreciated ! Thanks

P.s seller said manufacturer hasn't any update that he can give me for the camera but I found this link on the www, while messing around, don't know if it works or not ( so don't blame me if its a virus or anything). I don't know what you would do with it?

August 14, 2013 | Unregistered CommenterColin

Hi Colin.
Good to hear from you, specially with such good news. Both cameras are working fine and the overwriting process does not jeopardize the recording of new videos; to me that's a win/win!
About the rest, I wouldn't recommend using motion sensor because the response of the sensor is not fast enough to record the whole action. I haven't fiddled with the menus exaustively because I've found a good configuration for me and stayed with it. Batteries don't last as long as they claim, so don't worry, just keep it plugged to the lighter socket. I have auto-record set for "on", shutdown time set for "1" and I've been keen to try to enhance the exposure (but just haven't got the time to do it) to see if the picture becomes better.

About the firmware, that's a firmware download pretty well known, the problem is that without backing up the existing firmware on the DVR, who will be crazy enough to update it? What if the flash goes bad? What if the firmware is corrupt? You can't undo the flash BUT if you wan't to do it I can give some pointers on how to.
I haven't done it and won't do it until I have some software that allows me to first backup the firmware of the DVR.


August 14, 2013 | Unregistered CommenterHannibal

Thanks Hannibal,
so far so good , won't b using the firmware update unless my cam stops doing its job( don't know what difference it would make anyway!) thought someone on the forum might like to try it with their one that they have said aren't working properly, then give us feedback :-)
Video caught the guy in front of me bump a caravan yesterday, only going about 3kmh at lights, so don't think there was much damage. - I know I shouldn't have, but I smiled to myself knowing I've got it on video:-)
Prob talk soon m8

August 15, 2013 | Unregistered CommenterColin

You're welcome!
I'm just trying to help in any way that I can.

The only thing that my DVR shoul've caught, didn't. I was still having problems with jittery videos...


August 16, 2013 | Unregistered CommenterHannibal


August 16, 2013 | Unregistered CommenterHannibal

Excellent review and I bought one sometime back after your video review. Upgraded to Class 10 SDHC card that improved the video latency, but I notice the videos freeze for about good 30+ seconds on both front and back. Any tips? Not sure if it is due to the device busy in making way for new dumps. My settings are:
front: 720p
back: vga
interval: 5 mins

September 12, 2013 | Unregistered CommenterIndy

@Charmin, thanks for the detailed feedback. I now can confirm why my radio reception went down. Since, I cannot move the dvr itself I will try to re-mount the antenna to a different place.

September 12, 2013 | Unregistered CommenterIndy

Techmoan - thanks for the info. Bought one (from Amazon with UK shipment; original source Vanz Shop - stock now clearly all sold!).

Installed in my Hyundai I30 estate, with front camera close to rear view mirror, and rear camera glued to window surround as I was reluctant to glue it over the heating element wires. Downside is that rear wiper does not clear camera view.

Similar minor problems as experienced by others but so far all seems to be working OK. Charger seems a bit unpredictable - will probably replace it with a 'proper' USB charger unit with suitable output rating.

A good product for the money - remains to be seen how reliable it is.

September 13, 2013 | Unregistered CommenterTonyK

For the folks having stuttering playback - I have a similar problem when playing back HD videos recorded with my canon digicam with the SD card plugged into the laptop directly. I found that if I first copy the file to the local hard drive that the playback is perfect. turns out the SD card reader just isn't fast enough to play them back on my laptop.

Based on this review i think i'll take my chances buying one of these cameras. i found one on amazon for about $52 US with free shipping so that's ok by me. i plan to use the sticky pad mount in my daily driver, then use the suction cup in my race car. if the rear camera's cable isn't easily detatchable, i'll modify the cable myself and add a 3.5mm jack/plug to it so that i can have the second camera inside the race car, mounted on the passenger side, pointed at myself, so that while reviewing video, i can see where i was looking to learn from my mistakes. i would use velcro or 3m double-lock to be able to move the rear camera between cars.

funny thing about the g-sensor - if it works right, it should auto-retain all of my racing videos for me so that if i leave the car idling in grid for a while, i won't lose any real race footage. :)

I've tried out DailyRoads Voyager on my android, and while it works ok, my phone camera has a very narrow FOV, and the phone gets quite hot during operation. not to mention that my phone's mount is very shaky and adds a LOT of rattling to the videos. plus if i get a phone call while it's recording, i lose audio in my recordings from that point on, till i restart the app. certainly a very cool app considering that it's FREE, but sometimes it feels like more trouble than it's worth. plus it takes a big chunk of space on my phone's SD card. Funny though - my sd card is only class 2 8gb yet i have no trouble recording full 1080p video on it, either with the native android camera app or with dailyroads voyager. go figure.

October 10, 2013 | Unregistered CommenterJason G

Well I received the camera from amazon. I spent a few bucks more for one that was "fulfilled by amazon" so that in case there was an issue with it, i could just return it direct to amazon rather than china. The box proudly proclaims 1080p but still says "Vehile DVR" and uses "Mdeia player" along with other typos. It came preset to English, and it has firmware F20_G20130608, so that's fairly recent, whether it's june or august. The LEDs are still incredibly, obnoxiously bright, and I'll be completely covering them with tape - they're so bright, their light leaks out at the button openings. i may even paint the silver parts black so that it's less conspicuous in my windshield.

In the options, you can select 1080p, 720p or VGA. I recorded some sample video at each resolution to have a comparison of all three. "1080p" actually generates files that are 1280x720, 29fps, 5017kbps, and its files are about 37mb per minute. "720p" also records at 1280x720, 29fps, 7025kbps, and its files are about 52mb per minute. The only difference i could see between "1080p" and 720p was that the timestamp was smaller, and the smaller file size - the video looks effectively identical.

As for VGA (640x480, 30fps, 2503kbps, about 15mb/minute) - the picture is only slightly less sharp, but it isn't cropped vertically, since it's a traditional 4:3 ratio vs the 16:9 of the "higher" resolutions. The apparent width of the FOV is exactly the same, but i can see my dashboard and more of the sky - could be useful for those traffic lights that are so close or so high that you have to lean forward to be able to see them. As for overall clarity, even sitting behind someone at a red light, the license/number plates are legible, but still a bit blurry in "1080" and 720, and while i only tested vga in the driveway, i don't expect it to be any different. I think this is probably just a 640x480 sensor that's doing a bit of interpolation to get a supposed 720p, and then of course the 1080 is just a joke. Actual FOV is pretty good - I can see both front fenders and you can just make out the very corners of cars that are right alongside.

I plan to leave it set at VGA to get the larger vertical FOV as well as smaller file sizes. I bought a 32gb class 10 card for it, but if i'm only using vga resolution, i'll just use a 2gb card i have from an old phone and see how that performs. If each file is only 15mb, then my math says 2gb will provide just over an hour of recording time for two cameras.

I haven't tested the rear camera yet other than at my desk, but i received the kind that looks like the camera on the main device, complete with rotating mount, rather than the one on a little bendy piece of metal like what techmoan got. i also got the one with both a flat sticky pad mount plus a suction cup mount. the rear camera doesn't have the wide angle of the front one, but for my purposes, that's fine.

my only complaint thus far is the cable between the main unit and the rear camera. at the main unit end, it's a regular 3.5mm, 3-conductor headphone-style plug. At the rear camera end, it's some proprietary micro-din 4-pin connector. I plan to cut that off and replace it with a 3.5mm jack/plug. That way I can plug the rear camera directly into the main unit when in the race car using its existing ~1ft lead, or use a regular old headphones extension cable to put the rear cam wherever else i may want. Might be interesting to mount it low in the front grille, or even under the car, near the suspension, for some neat race footage, as long as it's not raining. That U-shaped base combined with a zip-tie or velcro should make for plenty of options. :)

Overall, for $55 shipped (plus SD card) I'm satisfied. I didn't honestly expect actual HD performance from a camera this cheap, so that "let-down" doesn't really bother me. It'll work for my intended purposes. Here's hoping it lasts.

October 22, 2013 | Unregistered CommenterJason G

I have to say that TECHMOAN does fantastic reviews, I’m sure all will agree. After seeing your review I purchased one of these dual cameras, and am very impressed with the video quality for the price. My kit has the swivel rear camera but it shows a mirror image which I assume may be better for use as a reversing camera. I see from your clip that the rear camera reviewed shows number plates the right way round, do you know how to alter this mirror image. The front camera can have the image inverted by pressing the REC or MIC button but not the rear camera. I have tried everything to invert the image including moving and turning the camera in every direction, any advice would be appreciated.
PS I have come across this site which has a well written copy of the instructions.


October 25, 2013 | Unregistered CommenterArchie Willis

Today I gave the camera a good workout at an autocross (similar to gymkhana). I used the suction cup mount for the main unit, then "mounted" the second camera to the headliner above the rearview mirror, pointed at myself, so i could see whether i was looking in the right direction for upcoming elements (the most important phrase you'll ever hear in racing is "look ahead!")

I had to use some other software (i used VSDC Free Video Editor) to combine the videos, and in the process i learned that the rear camera is PAL - it produces 720x480@25fps video, compared to the front camera's NTSC 640x480@29.9fps. This made for a little bit of audio sync issues in my videos, but i figured a sort of hackish way around it, and it's close enough for my purposes.

the suction mount did phenomenal - the only shaking you'll see in the video was from the car actually shaking.

here's today's race video on youtube, shot with this camera. hope you don't mind me posting this to your blog, techmoa - i figure it's fairly relevant.

One other issue i've discovered - this camera needs lots of power. the box says it needs 300-500ma. Of course it also says 1080p, vehile dvr, and mdeia player... I tried using my motorola phone charger, which can provide up to 750ma to its two USB ports, to power this camera. The camera eventually dies after around an hour or so of recording, even if i'm not simultaneously charging my phone. In the process, it corrupts the last file that was open. If I use the charger that came with it (which claims it can provide up to 1500ma) then i don't have this issue. this makes having a clean install in my daily driver while also being able to easily move the setup to my race car... less convenient. i'll need to find a second cigarette lighter adapter that can provide that 1.5A so i can leave it permanently mounted with wires hidden in my daily driver.

otherwise, i'm still happy w/ this little camera.

November 3, 2013 | Unregistered CommenterJason G

@Archie, there is a small switch on the rear camera itself which inverts the image.

November 5, 2013 | Unregistered CommenterIndy

Just to second what Jason G said a couple of comments ago, if you have a bog standard USB adapter in your cigarette socket it's likely that it won't supply enough juice for this unit. I have a cheapo one that claims to provide 1A (not tested) but it won't charge the camera at all and often can't even keep it powered on. The power adapter they supply is indeed 1.5A so we must assume the camera needs somewhere between 1 and 1.5A to run and charge it's own battery happily.

I've since been scouring eBay for the cheapest 2.1A (which seems to be the next common standard) usb adapters. I might bite the bullet and spend real money on a "Scosche revolt 2 / USBC202M" although I think that will either need hacking (short pins 2+3) or a charge only cable for the camera, which incidentally my spliced together cable is already (because I was too lazy to solder all four leads together). The "Scosche" claims to provide 2.1A to BOTH its usb ports, and also sits flush inside the socket like my previous mega-cheapo fake griffin one does.

Alternatively I may get a cigarette socket splitter and hide it behind the car plastics, using the charger that came with the cam,

Aside from power issues, very happy with this little camera. I wouldn't buy a front only cam, it seems daft to do so, so my choices were limited to this or two separate mini 808 types. I'm happy I chose this one.

November 10, 2013 | Unregistered CommenterTim P

I think this is fun and cool gadgets.. but one thing I want to ask Can that be done by pressing a key or do you have to enter the menu?..Thanks. Wire Supply

November 20, 2013 | Unregistered Commenterjessie

Hey my camer arrived today. All seems swell, will install it soon when i get spare time. I bought it off ebay from a guy who had sold over 600 and the firmware is version 20131022 which is the latest i have seen around.

About flipping the rearview camera, a switch? wheres this switch? =] its the bulky cam, not the one tech showed..

November 23, 2013 | Unregistered Commenterphilip663

Mine has the rear camera that physically looks a lot like the rotating front cam. there is no switch on it at all. but mine is facing the correct way. look at my sample race video above, and you can see i look in the correct direction for each turn. yes my head is turning the opposite way the video makes the car look like it's turning, but if you think about it, it's correct. if the camera were looking at the back of my head, it would look right. but if you consider the car is left-hand-drive, that alone is enough to show that the camera isn't showing a mirror image.

November 25, 2013 | Unregistered CommenterJason G

Mike this review of this particular item has given me a weird & whacky idea to use one of these as a (semi) permenantly mounted system on my Honda Blackbird.

Ok so I'm not even going to try & fool myself into thinking this is in any way moisture proof but bear with me.

Fitted behind the screen on the bird it's in an area that doesn't really get wet even in the heaviest rain but just as a precaution I'm sure it wouldn't be to difficult to find a suitably sized box from somewhere like Maplins and come up with a cover.

As for the rear view camera that could be mounted inside the tailpiece with a small hole drilled to allow the rear camera to see out, the hole could then be covered from the inside with a small piece of perspex to form a waterproof porthole.

Cheers Mike


January 8, 2014 | Unregistered CommenterMike White

Hi all, I've had my dvr now 6 months ,no problems, still recording over existing files, as for those with the stuttering video, I was getting the same problem when I first tried mine,I downloaded (or update)the k-lite codec and using the free media player my videos are stutter-free now.
(I did put my rear camera connection into the wrong hole on the side by accident and didn't notice it didn't record for a few weeks ,once corrected it worked fine again). Also camera slides of mount when I go round sharp corners- nothing bit of tape will fix. Only works for about 2 mins without charger plugged in. These are minor problems. Overall gr8 value for the cheap price.

January 9, 2014 | Unregistered CommenterColin

I bought 1 over a year ago with the firmware ver20120509 and successfully upgraded the firmware using LiveSuit

The main difference is the ability to auto turn off the LCD after 1 minute of starting up.
The next difference is the time stamp is now big and bold at the top right corner.

Video quality wise, no difference

The LCD auto shut off was all worth it. Loving it.

January 9, 2014 | Unregistered CommenterYanuk

I was wondering what video editor you use on your computer. BTW I did buy this camera based upon your informative review, however I'm a little new at the importing of video and wanted to get all straightened out in case I need the video. Thanks in advance and appreciate your reviews.

January 12, 2014 | Unregistered CommenterJoy

@Yanuk: Can you please redirect me to the right place to download the latest firmware?

January 29, 2014 | Unregistered CommenterPran

Hi Techmoan,

Does the rear camera require separate power supply say from reverse light or some 12v socket, or does it just needs to be connected to the dash cam only and it provides power to rear cam?


February 6, 2014 | Unregistered Commentershaan

How the car actually works? I'm trust on some locator device. I believe it will be great solution for car security. If our car theft, we are be able to find out this. for more information try this website.

February 8, 2014 | Unregistered CommenterKen Gregory

Hi shaan
The rear camera does NOT need a separate power supply it just plugs in to the dashcam.

February 9, 2014 | Unregistered CommenterMark236

I have this camera and I'm having problems with the rear camera everything is backwards and I can't seem to figure out why some how the image has been flipped and I can't figure out how to switch it back and the instructions are no help any help you could give me would be very much appreciated?????

February 10, 2014 | Unregistered CommenterTim

I believe that is the way some of these cameras's emulating the way things look through a rear view mirror. Take a look back at some of the earlier comments where I think this was discussed by a few people.

February 10, 2014 | Registered CommenterTechmoan

PostPost a New Comment

Enter your information below to add a new comment.
Author Email (optional):
Author URL (optional):
Some HTML allowed: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <code> <em> <i> <strike> <strong>