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Voltlog
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- Опубликовано: 14 авг 2024
- In this video we’ll take a look at the CJ720 car relay gps tracker, I’ll show you how to setup the tracker and how to get position information. I will show you what kind of commands this tracker accepts and I will also do a teardown towards the end.
→CJ720 GPS Command List
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Whilst setting up an identical tracker I connected it to a standard 9v battery and its been running for 7 days so am confident it wont drain your car battery. !!
Great Video. Very informative , Thanks
Neat. I'd like to see the bit about the open source server as well.
+1
Traccar is a nice open source server. www.traccar.org/download/
I'm not sure it its the same as described in video though.
All of these chinese devices usually support one of the protocols that Traccar supports. I highly recommend Traccar!
Did you ever get the Tracking issue solved ?
For your problems with gpscj site. I've had luck with NOT messing about with server settings. Other than the basic set up. I changed the apn my telco and changed the update time in seconds(1-180).
I set mine to 180 seconds, it'll upload its own location every 2 minutes. Saving battery and data. It doesn't matter really; once engine is started and device is in active mode, the unit uploads data every 5-15 seconds.
In disarmed mode, you'll won't be getting any vibration alarms. Only power cut. I don't have high hopes for that small lipo cell though, it might just fail outright when you needed it most. So hide it well. Chances are they won't be driving without a battery anyways.
I use the relay to drive my keyless start kit. Since the rfid ring takes around 20ma as it pulses for the presence for key. It does this all day and all night, so this handy relay helps.
This is a great video thanks. I got one of these and I connected it to the battery but it's not sending me an sms back, do you happen to know what I am doing wrong? I have checked it and both lights go on when I insert the sim card and I have also tested it in a cellphone but it doesn't send me the sms back when I'm trying to set the configuration
Thanks for the instructions. Got it up and running in the UK on a giffgaff sim card. Works great, I wired the relay to the horn so if I am near to my car but can't find it exactly, I sms the command and switch on the car horn. Server is working on mine too. Mine is in the car interior behind the dash and the signal is fine.
Hi Stacy, I cant get mine to update the GPS position, it shows its in China, Is there advice you can give me please. Thanks Clive
Hello there, I am not managing to Set it Up, I put the admim123456+number, I didn't have a response back
Thanks for this analysis. I have been interested in one of these for some time and eagerly look forward to seeing you succeed in getting it working properly.
You should test the circuitry out to see if it will cut out and quit charging the Lipo at the right voltage 4.2V. Max.... that way it doesn't go boom!
Thank you for your instruction that helped me a lot with my CJ780 device being very similar to th CJ720.
I recently found out how to get online to the YunTrack server on my PC as well as on my Android phone YunTrack-App.
1. I found the IP address for the gpscj.net domain is
113.98.254.179
2. Set the device IP with the SMS - command
adminip123456 113.98.254.179:7700
and you are online!
Good luck
i have a problem signing up are you having a solution to help me
I've spent two days trying to get it to work with a web tracking application, to no avail here in Colombia. Putting the sim in and changing some parameters was simple enough. I'm in Colombia, and have a 4G sim that is supposed to do 3G too. I don't know about 2G Some say the tracker only works with 2G, but that seems a bit silly for a "modern" design. Anyways, the SMS messages come in and get sent back to the Admin cell phone. I changed all kinds of settings trying to "connect" with Yuntrack and Traccar. I'm not sure if the CJ720 is supposed to talk with the local carrier MMS or internet server. I downloaded the traccar client app to an Android phone, for testing of the phone's settings, and could get a location, but not any tracks when I walked around the block. Iffy stuff at best.
Please do you need active data connection for internet on the relay?
Dm ⬆️⬆️ he can help you out.
If the 1 year use period expires, how can it be extended?
Did you manage figure this one out?
Sir, can you test the module if it is normally open or normally close without power, i need to know if the cutoff line is normally open or close if it no power. Thanks
Got this today tried setting it up with my phone but get no response, do I need to use country codes or should I reset and start over ? The app works and so does the webpage no issues
Thanks for the review of this little gps tracker.
Please let us know, trough a reaction here, when there server is finally working.
The video about the server has been published.
@@voltlog thanks :-)
@@voltlog Can you add a link to the description? Thanks!! great video!!
I am looking forward to more videos like this one and hope to see the video about the tracking server too.... Thanks!
Thanks for the great video I recently purchased one of these and will be installing it soon... I am looking forward to more videos like this one and hope to see that video about the server soon soon.... Thnks
I would also like to see that tracking server. Is there an alternative firmware maybe?
I don't think there is any chance for alternative firmware as these Chinese SOC are usually closed source.
@@voltlog Ah, darn shame. Just have to watch to be sure that no weird SMS messages get sent to weird numbers then... I don't know how you could know if it was sending weird stuff out over the data connection...
No need for an alternative firmware, you just reconfigure it to send the data your/any Traccar server.
@@jangrewe i have a device but it expired can you help me move it to an open server
@@amirsaeed636 Sorry, i dumped all those chinese trackers and bought a Teltonika FMB920 instead - much better, easily configurable, great documentation, and not that expensive either (~$35).
How does the gps antenna work if installed under the (metal) hood of the car?
It doesn't work at all, unless you open the hood. However, when it can't get a GPS lock, it will determine the position by triangulation of the cell signal, which, of course is far from precise.
There are places in a car where you could install this and still get a signal
I was wondering about that...
Would b good if u test that..!
D Stanoev unless you attach it to the wheel sensor sys....... Hehehehe you are absolutely that ex to track haha then sell the information to people on the dark web for quick cash......... It's that simple ... If you get your oil changed or your car serviced a slip of less than 100 bucks and your everything is available. Get used to it or service your car yourself. .. and under a hood ........ Just snip the ground . And it's now a a receiver. You won't get that.
I want to explain cj730 yuntrack app Comandos please
I want to know the job of all commands
Can you do installation video with real world test?
hello, do you have the url of the open source gps tracker server please?
www.traccar.org/
Send a command to WHAT number? I have a new device - a tracking GPS unit - you say to text some commands to it - how do I do that?
$14 😲 Wow. Thanks for the video. Good review.
Can't help but wonder if there's a better solution available in 2022. These little units would be awesome for small equipment and/or low risk vehicles.
This is a very useful and detailed video. I have bought several gps trackers and now have one of these to test. I want something I can attach to my motorbikes that is reliable and can cut the fuel. But where as the others need to be hidden and that mean the satellite gps function is less reliable, with this device I can have it exposed because it looks like a relay. I glad you dissembled the unit as it shows there is no physical relay but a MOSFET to switch the power to the fuel pump etc. It does draw 60mA in standby, so the bikes need to be kept on charge when not in use. It would be good if the GPS and GSM circuits powered down until movement was detected thus only requiring a few mA when in standby, but I do no if there is a command for this.
Can you share the link for creating you own server?
Great job. Thanks for sharing.
Yeah their documentation on this product is very very poor. Even today a year later. You are able to make the GPS tracker to go to sleep if you send "sleep123456 shock". Then it will only draw very few mA until the device is shaken.
My unit is offline, how do i put it online again?
It says my device is expired what is the solution pls. Tnx sir
How do you mount it to receive the GPS satellite. It can't possibly be mounted under the hood. No clear signal at all! The last few years I've mounted them under the dash on the right side usually using a puck style antenna. This design would not fit.
under the dash would work nicely, also in the back near the back window would also work.
How many hours can survive with Build in Battery?
Impressive module for the price and its size! I'd definitely be interested to see the OSS server in a future video.
I will probably do it but I don't think I'm gonna succeed in configuring this tracker to connect so maybe it's best to wait and get another tracker so I can have a fully working system.
@@voltlog It might be simpler to just build your own? Even though it'd end up being more expensive and less stealthy... At least you seem familiar enough with car electronics to be able to hook it up somewhere it'd not be easily spotted.
I can give you a free tracking service for life.
How ??
is there a way to redirect messages received by the tracker?
Thank you for sharing. I liked your video for clarity and detailed information. Keep up the good sharing. Thank you.
It's work on 48v battery dc power??
Your reply we can help us
Nice now they have more of an idea where the tracker might be and what to pull out and throw away
Neat. With a proper install (i.e. well blended into the existing bank of relays and wiring harness under the hood) this would be damn near impossible to find.
It's very easy to detect if you have the right meter....
My concern is cell and gps signal greatly reduced under a steel car hood
@@turbomar6667 yeah that is a valid concern. I guess if your putting it on your own car you could opt for a fiberglass hood for better signal. That's a lot more work and $ though
Michael Lange what meter would I need ?
@@JA-yy6bd RF meter, but it would only work while it is active.
Amplified headphones will sometimes pic up noise from cellular transmission as clicking noises too.
my unit got online after factory reset. this reset doesn't reset network settings
Hi, I have a similar device that does not respond when it has 12v External, but when I unplug it I can communicate with it. Any idea why ?
Nice review, looking at getting one myself.
Could I hook this up to a Duracell DR5 style battery? As I'm think of installing it to another part if the car. The Duracell DR battery is 12V but some DR battery have different mah size.
I have used a standard 9v alkaline battery for 7 days until i hard wire it to my Mobility scooter.
Hello, where can i get a full sms command list?
I tried it in Egypt and worked very well
استاذ مصطفي انا جبت الجهاز بس فتره صلاحيته انتهت
ممكن تقولي ع حل
@@amirsaeed636 السيرفر فيه بيبقى ١٠٠ سنة.... دور في الموقع... واتاكد ان الشريحة شغالة ومشحونة
@@opipharma2009 استاذنك ف رقم حضرتك يا استاذ مصطفى
after i ve changed the pass in the app then i can't reconnect anymore.
but weird i can connect to the account on the browser with the new passwords. maybe a problem with a symbol in my password?
and their website s bullsh i can't even change the pass back
Please show more. Very interesting 👍
Looks that some setting like timezone or update time are not changed even if the module responses ok to a command.
Can't get any sms alarm when armed. I.e. expected to get an alarm when acc gets +12V (simulating someone tryining to start a car), but with no result so far. Once got shock alarm. Due to exremely long lag on sms responses, can't rely on this thing.
I bought one and have the same problem as you. It adds a prefix to the server and so the server cannot work properly. I am in contact with the seller and will let you know if I have helpful feedback.
Set your own external IP-Address and check the Firewall on wich port the tracker tries to connect. Then set a forwarding for these port/ports to your own internal Server and analyse the traffic with wireshark. I think this tracker posts it's position via http. No encryption or other complicated stuff. It seems to be port 7700.
The problem is, I'm not seeing any connection, the trackers is not contacting the server.
You can configure the port you want it to send to. For Traccar, 5013/tcp is the port of choice. And no, it's not using HTTP.
On mine, the power down alarm doesn't work anymore even after sendinq "pwd1" . Any idea ? The lipo battery seems to be Ok.
What kind of tracking device would you recommend for my equipment trailers that would allow real time tracking should one of my trailers be stolen? Thanks
I would recommend professional tracking service with additional low frequency trackers built-in besides the usual GPS/GPRS connection.
Hi Tracey our company has a trailer tracking solution if you want me send you info thanks
How many hours does he work only with the device's internal battery (standby)? How many mAh is the internal battery?
Hi. My tracker has expired. Any solution available? Thanks
I have the kl720 car tracker
was working well with message and iPhone app LKGPS2 very well , unfortunately the app tracking just stop working after I disarm it on the app , after that I can’t re-arm it
The phone number in the tracker call my phone at times indicating something is going on
Not sure what’s happening but would really like you to help me setting it back to normal
hi , did you managed to make the online tracking work until now ?
they sell it with one year online service license.
My unit doesnt send me back a text message. Can someone help?
Hi... I have CJ720 and it works perfect as tracibility but I cannot send comand... please help me how. thx
can it cut off fuel in the traccar
Thanks for making this video. Very helpful information! I'll use your eBay link next time I purchase so you get some money for your effort.
I took a look into command - what's the Monitor Mode and Tracker Mode?
Thank you for the perfect explanation it works now thanks to your good video 😊
hello, I also bought a gps tracker cj720, I connected it to the car, I started to set it with sms begin123456, then with sms admin123456 and my phone number, then I changed the password with sms password123456 and new password, since I changed the password, it doesn't receive any command and it responds with password err please if you can help me how to reset it
Super project 👍
I have very bad experiences with 12v car batteries and GPS trackers regarding the power consumption.... you said that this tracker can automatically go into sleep mode... did you send an SMS command to enable this function or is it enabled by default? moreover, did you have any luck with server?
How can I reset the device if I lost my modified password? I modified the password but I dont remember that. Then I cant controll the device, I cant send SMS prompt. What can I do? How can I reset the factory settings whitout password? Thanks
Bună ziua. Am cumpărat un yuntrack cj220 și nu știu cum să îl setez, nu comunica cu rețeaua mobilă. Va rog frumos, ați putea să mă ajutați?
Silly question, but how do you text the unit to set the APN if it's not on your operator network to start with?
Put the card in phone and go into mobile data settings and set it manually.
How to reset device? To set to factory default?
what if there is no phone signal?
I made a mistake and made the admin number the same as the sim card in the device. How can I undo that and change the admin number.
Veru informative what kind of sim is it prepaid or postpaid
My phone tracks great but their WEB site and phone application still show me in China, Not PA, USA. So, I am having the same problem. If I get it resolved I will let you know. Thank you for the video.
did you ever fix this
No@@zachbrenneman4157
Very interesting. Thanks for sharing !
how can renew my expiry device ? because after expiry date pass doesn't want to work anymore
What is the different of sleep mode, sleep time mode, and sleep shock mode?? Thanks
This is GREAT.. If it could still have the relay function would be mind blowing... looks great.
It does still function as a relay. It can be used to cut the fuel or ignition via app for sms.
Mine doesn't cut the oil( fuel)
This was such well done video. I'm subing to ya
Hello i have hd my relay for just over a year and now it says its offline and cant do anything to get it back online
The only thing sad about these modules in general is that some countries have started to shut down 2G and 3G networks, leaving 2G only for certain private corpo services.
how to set the frequency of sending data to server for example send data on every 15 seconds ?
yt does a great job in counting: 0 views, 7 likes =D
Great video
Multiple Servers deliver the video and collect likes and other information without updating the information immediately. This allows load sharing without having unnecessary bottlenecks. :)
@@zvpunry1971 yeah, =D thanks
have a great day
Bought a tracker identical to this for use in the UK and a lot of the commands I have been trying to text it simply just don't work,
then If I ask it its location it just returns "NO GPS"
Thought it may be a iffy unit but bought 3, and all 3 are the same, very odd...
Same with mine
Hello who is best tracker car gps this model or st-907 respect
@voltlog I HAVE SIMILAR LIKE THIS AND CANOT MAKE GPS ON LINE ITS C13 MODEL DO YOU KNOW COMAND FOR YOURS
I need help the GPS is disconnected and in China and I am in another country, with which server should I connect it
hello VoltLog can you kindly tell me how to reset the system? I can't log into it anymore and can't remember if I've changed my password
I've change the Sim card on the gps coz its expired. now it doesn't respond to the command. what should I do?
Is the unit have expiration?
I had a gps tracker about 5 years ago, command and control system looked the same, unit itself was very different though. I remember a similar issue with the server connection, it was something to do with the command being sent, I just don’t remember what it was.
yeah, I'm not sure I'll ever figure this out because even if I setup my own server the tracker is still going to be pointing at the wrong address the way I see things..
Installed one of these but its only showing a location in China
Is it known which GNSS system is used? GPS, Galileo, Glonass, and/or just Beidoo?
does anyone know a way of hard resetting this type of device? I managed to set an admin number thinking it was necessary for further settings and it accepted the number but I put it without the country prefix so even though the number is correct the device doesn't recognize it and throws a reply "not admin number" to all sms commands. I've tried all the format, factory, reset, begin commands via sms and the only one it reacts to was #begin#123456# which it replies "not admin number" to 😐
Got one of this installed. All worked well (ofcourse "Chinese well"). Left it for a few months in the car, without a Sim card and with a discharged main battery. Now, when I want to use it and plugged back the Sim , it doesn't work. The LEDs don't go on.... Where should I start looking for a fault? The black/red wires measure 12v
Evgeny Knafel check the internal battery, it might want that to be working.
@@voltlog shouldn't the internal battery get charged from the main 12v supply? Connected it on my table to 12v power supply and left it connected...
How many Amps is this able to switch?
Nu functioneaza nici la mine aplicatia de tracking online. Ai reusit ceva cu ei pana la urma, ti-au dat vreo solutie?
Sir! how to troubleshoot hadware fault if device is not on?
Sr, i live in los angeles california what sim i need to buy ? After install the chip the tracker work forever oh i need to pay again?
Many thanks, instruction that cam with my unit totally useless, after watching your video got mine working in a few minutes.
MR G what SIM card did you use
Tesco pay as you go
Check the apn settings, for the server functionality
Hello I'm from Portugal and I can't do this steps because when I send the first message I don't receive the reply. Please help me, thanks.
Can this cut power or only fuel