Alarm Without Gsm Network Service; Sleep Mode; Sleep By Time; Sleep By Shock Sensor - GPS Tracker GPS303CD User Manual

seconds, send command" sensitivity+password+space+3".

6.26 Alarm without GSM network service

When the car is in the place without GSM network service, siren will sound
under non-silent mode if alarm is triggered (sensor, ACC), but no SMS
alarm will be sent to authorized number.

6.27 Sleep Mode

6.27.1 Sleep by time

Send SMS command "sleep+password+space+time" to tracker device, tracker
will reply "sleep time ok" if none of the alarms has been set and no operations,
tracker will fall asleep in 5 minutes, GPS module shuts down, LED will be
off ,calling or SMS can awake the tracker. If these alarms have been set, tracker
will sleep by detecting shock sensor.
e.g. sleep123456 time

6.27.2 Sleep by shock sensor

Send SMS command "sleep+password+space+shock"to tracker device, tracker
will reply "sleep shock ok", it will enter sleep mode if no shake is detected ,
GPS module shuts down, LED will be off . Shake or any operation can awake
the tracker
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