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6.12.1 The default mode is "track" (track mode).
6.12.2 Send SMS command "monitor+password" to tracker device of vehicle
terminal, it will reply "monitor ok!" and switch to "monitor" mode.
6.12. 3 Send SMS command "tracker+password" to tracker device of vehicle
terminal, It will return "tracker ok!" and restore to "track" mode.
6.13. Alarms
6.13.1 LOW BATTERY ALARM
When the voltage of the tracker device is near 3.6V, it will send SMS "low
battery+lat./long information to the authorized number in 3 minutes interval.
6.13.2 POWER OFF ALARM
When the power be cut off or the voltage is 0V, the tracker device will send
SMS "power alarm+lat./long. to the authorized number in 3 minutes interval.
6.13.3 SOS
Long Press the SOS button for 3 seconds, the tracker device will send SMS
"help me!+lat./long. to all the authorized numbers in 3 minutes interval. It will
stop sending such a SMS when any authorized number reply SMS "help me!" to
the tracker.
6.13.4 Geo-fence
Set up a geo-fence for the tracker device to restrict its movements within a
district. The unit will send SMS to the authorized numbers when it goes out of
this district.