As a preface, let me say that I have been doing these types of installs for quite some time. The tk103 is an excellent unit for the price and the install is very simple. As I am sure most of you have already read other comments, I will skip to the nitty-gritty. For this particular installation, I clipped all but the red, white, and black wires at the point on the harness where they fit into the main unit. This most certainly is not a necessity, however I do not plan on using any of the other features of this device. Reports for the GPS handy GSM antennae are very well-marked and will give you no trouble. The wiring harness itself, especially down to 3 wires, will also give you no trouble. The red has to go to a 12 volt constant signal, the black to the ground (I used a pre-drilled ground bolt that was already in use), and the white wire to an accessory witches a line that is hot when the car is on. There are many that go ahead and bridge the white and red wires, however I do like to see while tracking if the car is running or not and the ACC is one of the ways to do it. From what I have seen so far, I have had zero problem tracking and using other functions with the car off and ACC reading off.
One of the most important parts of the installation will be how you position the GPS and GSM antennae. The radio antenna gets surprisingly good signal, as does the GPS antenna. Having said that, I still think it is very important to place the radio antenna somewhere as unobstructed as possible considering 2G service is becoming increasingly more sparse.
One of the most aspects to really consider when purchasing this device is that it operates on 2G cellular networks that piggyback on AT&T's network. As they have already truncated 2G service in many areas across the United States, many places still have more than sufficient 2G coverage if not excellent. It has been discussed by AT&T officials that there may be a probable complete cessation of all 2G this year starting approximately Q1 of 2017. Considering the price point of this item it was not a very important blockade preventing me from purchasing this. Hopefully the same companies will produce a 3G and higher architecture device that will directly replace these making upgrades very easy.
On the subject of mobile carrier activation, it was an absolute breeze. When you go to H2O Wireless's website , be sure and have an H2O Wireless SIM card handy which I ordered at the same time as this device. I will go ahead and in order describe the overall process to make things easier for you guys and gals.
1. Go to the H2O Wireless website
2. Go ahead and register with your email address
3. Login using the username and password that you created.
4. Once logged in, Click over to services and "activate new number"
5. Where it asks if you already have an H2O Wireless SIM card, and her the same which is a 20 digit number on the back or the Act Fast code which is 9 or 10 digits and click "check."
6. From there you may continue and choose the plan which best suits you. On the recommendations of my Amazon peers, hoz pay as you go 4G LTE $10 plan.
7. Go ahead and complete the purchase process and upon completion you will be taken to a screen which will give you your new 10-digit telephone number.
8. Now you may remove the SIM card from the packaging and push the small pinhole button (#3 I believe) in order to access the SIM card tray.
9. Now you may insert the SIM card making sure the orientation is correct, reinsert it into the module, and power up the device.
10. You will see a light blinking on and off on side of the unit which indicates both GPS triangulation and radio signal acquisition, give it a minute or so.
***Note: The following command are to be texted without quotation marks***
11. Once the light is stable Kama it is safe to test the device by texting "begin123456" and awaiting a reply.
12. Firstly, I recommend changing the password by texting "password123456 xxxxxx" (the "x" indicating new numbers). NOTE: replace 123456 with the new password in upcoming commands.
13. You may add administrative phone numbers that will receive status updates and pertinent messages from the unit using the command "admin123456 2223334444" (2-4 being the number you wish to add).
14. Lastly, you may text the device for one location ping using the command "fix030s001n123456"
Happy tracking all!!
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This Item  Vehicle Car GPS Tracker TK103A, GSM Alarm SD Card Slot Anti-Theft Realtime Spy for GSM GPRS GPS System Tracking Device |  |  |  |  |  | |
| Price | $35.99 | $37.89 | -25% $29.99 List: $39.99 | $35.89 | $39.99 | $99.00 |
| Delivery | Get it as soon as Friday, May 3 | Get it as soon as Friday, May 3 | Get it as soon as Friday, May 3 | Get it as soon as Friday, May 3 | Get it as soon as Friday, May 3 | Get it as soon as Friday, May 3 |
| Customer Ratings | ||||||
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| Tech Support | ||||||
| Battery life | ||||||
| Sold By | TheCoolCube | YuYue Electronic | PAJ GPS INC | YuYue Electronic | PAJ GPS INC | ReiWour |
| special feature | — | — | Alert Notification, Location History, Magnetic, Real Time Tracking, Rechargeable | Speed Monitoring | Alert Notification, Location History, Motion Activated, Real Time Tracking, Speed Monitoring | Waterproof |
| supported applications | GPS, Alarm | Alarm | Alarm | Alarm | GPS | GPS, Alarm |
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Reviewed in the United States on May 6, 2016
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Reviewed in the United States on December 22, 2019
I ordered 12 of these devices, I've never written a review before, but I had to alert try to save someone fro the same demise I faced, these devices are faulty, out of 12 only 3 worked, I bought in an attempt to do retail sales, by just turning on the power on the tracker within minutes the battery explodes and u get a funny scent emanating from the device then no more power, this is before anything is connected, yes it doesn't even reach in the vehicle, another is after sim installation you get no signal to the gps, sigh I really made a loss, dont buy these devices.
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