12
6.17. Alarms
6.17.1 Low battery alarm
When the voltage of the tracker device is near 3.6V, it will send SMS “low
lat./long information” to the authorized numbers for two times.
6.17.2 Power off alarm
When the external power of tracker be cut off or the voltage is 0V, it will send
SMS “power alarm+lat./long.” to the authorized numbers in 3 minutes interval.
6.17.3 SOS
Press the SOS button for 3 seconds (For model B, press B button on remote
controller 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.
6.17.4 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.
Set up: When the tracker stays immobile in a place for 3-10 minutes, the user can
send SMS “spspace+latitude,longitude;latitude,longitude” to
tracker to set the restricted district. In case of breach, it will send SMS
“stlatitude/longitude.” to the authorized numbers.
Note: The first latitude & longitude is coordinate of the top left corner of the
Geo-fence, while the second latitude & longitude is the coordinate of the bottom right
corner, it will alarm SMS in 3 minutes interval.
Cancel: Send SMS “nospassword” to deactivate this function.
6.17.5 Movement alarm
Set up: when the tracker stays immobile in a place for 3-10 minutes, the user can
send SMS “move+password” to the tracker device. It will reply “move ok!”. In case
of such a movement (the default distance is 200 meters), it will send SMS
“Move+latitude/longitude to the authorized numbers in 3 minutes interval.
Cancel: Send SMS “password” to deactivate the movement alarm.
6.17.6 Over Speed Alarm
Set up: Send SMS “speed+pspace+080” to the tracker. (Suppose the
speed is 80km/h), and it will reply “speed ok!” When the tracker moves exceeding
