Tracker GPS alarm beacon for tracking on a magnet with a SIM card and a built-in microphone GF-07

GPS tracker alarm beacon for tracking on a magnet with a SIM card and a built-in microphone GF-07 - Thanks to the GPS tracker GF-07, you can save yourself tons of nerves, as well as protect your property from theft, and your family from trouble, since this device not only reports its location, but can also work as a portable alarm. All you need is to insert a SIM card from any mobile operator into the tracker.

What is the tracker for:
As a means against car, motorcycle, bicycle theft.
To protect things from thieves (put the tracker in your purse).
To monitor employees (sales agents, drivers).
To control the location of the elderly, children, pets.

Advantages of the model:
Compact size.
Built-in battery for autonomous operation (up to 6 days).
Built-in microphone.
Built-in slot for a memory card.
Built-in magnet for fixing on a surface.
The 2G protocol is used to transfer data, which allows you to save traffic and transfer data even in the most remote places.
Alarm mode (the tracker calls your phone when it detects noise, you can hear what is happening near the tracker, which is very convenient for protecting your car).

Functions:
Find out the location of the device with an accuracy of up to 500 m.
Listen to and record conversations from the device to a memory card.
Notify when voice and sound are detected.
Find out if the tracker has left a certain radius.

Instructions for using the GF-07 tracker:
Connect the device to a power source and make sure that it is fully charged. Optimal charging current: 5 V, 0.5 A (you can use a charger from a PC or laptop).
Insert the SIM card into the tracker. After that, the red indicator should flash, and after 30 seconds go out - this means that the device has been successfully loaded and is ready for use.
Make sure that the SIM card has sufficient balance (enough SMS and megabytes). It should also be without a PIN code. If the SIM card has a PIN code, disable it using your phone.
Add the SIM card number in the tracker to the contact list for convenience.
Insert a memory card (microSD) into the device if necessary.
Call the SIM card number installed in the tracker. If the device is working properly, it will answer the call and you will be able to hear the sounds surrounding the tracker through the phone. In the future, you will be able to call the phone and listen to the surrounding sound at any time.
Send an SMS with the text 000 to the tracker to bind the phone number to the device.
Send an SMS with the text 000 to the tracker to set your current number as the master number for the tracker.

Full list of SMS commands:
000 - bind the master phone;
888 - tracker status information (signal level, battery level, active tasks);
777 - get GPS coordinates;
102 - get login and password for registration on the location tracking website (the website is only in English and Chinese);
666 - enable alarm mode (the tracker will call your number if the noise level around it exceeds 40 dB);
555 - enable sound recording on the memory card;
445 - format the memory card;
444 - cancel all tasks;
999 - reboot the tracker;
To listen to the tracker's microphone, simply call its number.

Problems and their solutions:
The tracker does not turn on (the red light does not light) - make sure the battery is charged and the SIM card is inserted correctly.
The tracker does not boot (the red light comes on but does not go out for more than a minute) - make sure that the PIN code is turned off on the SIM card; Make sure that the SIM card is installed correctly, try pressing it additionally. If the problem persists, try another SIM card. It is recommended to use SIM cards without perforation or with minimal perforation. If the SIM card was previously divided, it may not contact the tracker well, which can cause problems.
If you do not receive an SMS with the location of the tracker, make sure that the SIM card balance is sufficient to send SMS and use the SMS package and megabytes.
If other functions work, but you do not receive an SMS with the location of the tracker, make sure that your SIM card supports a 2G network. Usually, this function is present on most SIM cards, but exceptions are possible. Use a SIM card from an operator with the most stable signal in your region. If changing the SIM card does not help, try sending commands 444 (reset all settings) and 999 (reboot the tracker), wait 10 minutes and repeat the request.
If the location is not determined accurately, try calibrating the tracker's gyroscope. To do this, reboot the tracker (command 999), wait 10 minutes, call the tracker and make sure it is on (it will pick up the phone), then turn it off. Holding the tracker in your hand, make 10 movements in the air, in the shape of the number 8. Repeat this operation at least 4 times, changing the position of the tracker in your hand.
To accurately determine the location, the tracker uses LBS technology, so in some regions there may be discrepancies from 10 to 500 meters.