GPS Tracker GSM/GPRS/ User Manual page 31

31
SMS reply fail Password incorrect or wrong sms commands format
Call without SMS reply
or cannot receive alarm Authorized number is wrong or without setting any authorized number
SMS
fail
Remove external power , turn on the device and program again
Remote Controller
Siren's voltage is DC12V/24V/1A. Siren can't be activated if it is negative
Siren fail
triggered.