TLT-2F GPS/GSM Car Tracker Instruction Manual V3.0
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Chapter Four Application and Operation in SMS Mode
Most instructions are operable under both SMS mode and GPRS mode unless otherwise specified.
1. Instruction to change user password
Instruction format: 777+new password (4 digits) + old password (4 digits)
For example: 77712340000
Description: The terminal receives the instruction and return confirmation message after success. The message
is “SET USER PASSWORD OK”.
2. Instruction to request single positioning
Instruction format: 666+user password (4 digits)
For example: 6660000
Description: When TLT-2F receives the instruction, it will return current positioning message after success.
Data message format is as follows:
Lat: latitude direction (+/-) latitude value (accurate to 5 digits after decimal point)
Long: longitude direction (+/-) longitude value (accurate to 5 digits after decimal point)
Speed: Speed KM/H (accurate to 2 digits after decimal point)
Direction: course direction (accurate to 2 digits after decimal point)
Date: YYYY-MM-DD
Time: HH:MM:SS (Greenwich Mean Time)
BS: Base station information
FIX: positioning status (A/V) (A stands for Available, V stands for Unavailable)
ID: IMEI (device IMEI number)
STATE: message status
Example of valid data message :
Lat: +22.50500
Long: +114.01000
Speed: 0.00KM/H
Direction: 315.00
Date: 2008-04-25
