... management.(Support admin, user. etc) 3. SOS alarm, low power alarm, Park alarm, Geo-fence Main Function:Real-time trackingMulti-user management ... .(Support admin, user. etc)SOS alarm, low power alarm, Park alarm, Geo-fence alarm etc.Playback history.Set geo-fence, speed ... limitation. Send email or SMS when alarm.Used Map: Google Map,Modify the time interval of tracker ...