Smart-Azz GT28 User Manual - page 7
7
3. Operation and Command Mode
3.1 Single GPS position request mode [S]
Command string:
[PASSWORD]-[S]
example: 1234-S
In the single GPS position request mode only the present GPS information will be sent via
SMS. If GPS data is not available, then the GSM “Node” info will be sent. This data can be
handed to the Police to assist them in locating the device for you.
3.2 Tracking mode [T]
Command string:
[PASSWORD]-[T]
example: 1234-T
The Tracking mode is intended to regularly check the position of the unit automatically
where regular update of position is required, for example, when tracking a stolen vehicle.
The SMS information may include GPS coordinates, GPS date and GPS time. The Track
mode can be switched OFF with command:
[PASSWORD]-[T]-[off]
example: 1234-T-off
3.3 LAST valid GPS coordinates [LAST]
Command string:
[PASSWORD]-[LAST]
example: 1234-LAST
In the event that no GPS data can be transmitted (No satellite reception) the GSM cell
phone tower “Node” information will normally be sent. With the “LAST” command
however, it is possible to retrieve the last valid GPS coordinates saved by the unit. This
could possibly still be more accurate than the GSM “Node” information, depending on
which mode was used and when the last position was checked by the device as
programmed.
3.4 Geo-Fence mode [Geo]
Command string:
[PASSWORD]-[GEO]-[on]
example: 1234-GEO-on
The Geo-fence feature allows the user to set a virtual boundary. The tracker will inform the
user when leaving or entering this boundary. The default radius of this boundary (circle) is
set to 100m. Geo-Fence can be switched off with command:
[PASSWORD]-[GEO]-[off]
3.5 Power Saving mode [PS]
Command string:
[PASSWORD]-[PS]-[off]
example: 1234-PS-off
The Power Save mode (PS) allows extended operation of the tracker without recharging
the battery. Battery life however depends on the use of the various functions. The default
setting for Power Save is OFF. If Power Save is switched ON, and the unit is only
powered from the internal battery, it will be switched off for the user-defined (“C”) periods
as programmed in the “Tracking” mode Initialization settings and will not respond to new
SMS commands whilst in those “C” time intervals. (See next section for more details)
The Power Save mode can be switched on with command:
[PASSWORD]-[PS]-[on]
3.6 “Battery Low” Warning [BATLOW]
Command string:
[PASSWORD]-[BATLOW]-[on]
example: 1234-BATLOW-on
Used to activate the Battery low warning. To deactivate it, send: 1234-BATLOW-Off