This guide describes the initialization of the TK905 4G GPS tracker by TK-Star for integration with the Time Slot Control application.
Product information and manual download: TK905-4G on tk-star.com
Open the rubber cover and insert the SIM card (chip facing up) into the slot. The indicator light turns on once the card is inserted.
Use only a GSM SIM card with an active data plan (calls, SMS, GPRS). The SIM card must not have call forwarding or a PIN code enabled.
In the application, go to the GPS tracker management section and create a new record using the Create GPS tracker form. Fill in the required fields:
TK915G4.Send an SMS to the phone number of the SIM card in the tracker. Enter your own phone number (not the SIM card number inside the tracker) from which you will control the tracker:
admin123456 +YOUR_PHONE_NUMBER
The tracker will reply by SMS: admin ok
After setting the admin number, all SMS commands are accepted from this number only.
If no reply arrives within 2 minutes, check that the SIM card is properly inserted and has sufficient credit.
Send an SMS with the command to set the TSC server IP address and port:
adminip123456 20.47.96.43 9200
The tracker will reply by SMS: adminip ok
Send an SMS with the command to set the GPS location sending interval (in seconds — we recommend 60 s):
upload123456 60
The tracker will reply by SMS: upload ok
Shake the tracker or take it outside to acquire a GPS signal (blue LED flashing = GPS OK). After approximately one minute, check that the Last contact value has been updated in the application.
If the tracker does not respond or is not sending location data, send the command to display the current configuration:
check123456
The tracker will reply by SMS with the current settings (IP address, port, interval). If the configuration is incorrect, repeat the relevant commands.
To reset the tracker to factory settings:
begin123456
The tracker will reply by SMS: begin ok
Battery information is included in the location response. Send an SMS command from the admin number:
G123456#
The tracker will reply with an SMS containing the location and battery status, for example:
Lat:50.123 Lon:14.456 Spd:000 T:04/06/26 10:00 Bat:85% ...
The
Batvalue is between 10 % and 100 %. Below 30 %, the tracker automatically sends an alert to the admin number.
This command works from the admin number only. Calling the tracker's SIM directly may not work if it is a data-only SIM without voice call support.
admin123456 +NUMBERnoadmin123456adminip123456 IP PORTupload123456 SECONDScheck123456begin123456speed123456 070nospeed123456shock123456noshock123456timezone123456 +1adminip command (TSC server IP and port).