Do you have a question about the HLXTSZ GT003 and is the answer not in the manual?
Configure the authorized phone number to control the device via SMS commands.
Configure APN, username, and password for GPRS data connection.
Set the language for SMS reply content from the device.
Request device location via SMS, receiving coordinates and web link.
Enable or disable the vibration alarm function.
Configure or disable the over-speed alert function with a specified speed limit.
Initiate voice monitoring by having the tracker call a specified number.
Retrieve current device settings like IMEI, alarm modes, language, and time zone.
Restart the device without altering its configuration settings.
Reset all device settings to factory defaults, excluding the IP configuration.
Select device operating mode: safe, power-saving, or super-long standby.
Set the interval for data uploads to the platform, from 20 to 120 seconds.
Access the web platform for real-time tracking using device IMEI and default password.
Use the GPSONE mobile application for device tracking and monitoring.