TK103 GPS Tracker

Instructions for TK103 GPS tracker
All instructions sent to the GPS unit via SMS must be in lower case letters only. Instructions sent to the unit that are upper case, or start in upper case will be ignored by the unit. Instructions below are contained in quotation marks, quotation marks do not need to be sent and are simply to clarify what to send.

From the factory, the password to access the unit is 123456.

Setting Master Number
Until a master number is added, the GPS unit will SMS reply with its GPS location to ANY number that calls it. To stop the unit replying to any number that calls it, a master number must be given to the unit. Instructions below show how to set the master number.

Ring the GPS unit from your cell phone and let it ring until the GPS unit picks the call up or the unit hangs up. Do this 10 times in a row, each time letting the unit pick the call up/hang up. While making these calls, the unit may SMS back with its GPS location, ignore these. After the 10th call, the GPS unit should SMS back something other than its GPS location. Depending on the manufacturer of the unit, it should SMS "add master OK", although, some units will just sent a blank message instead.

Setting Admin Numbers
Admin numbers are secondary numbers that will also receive SMS alerts from the GPS unit. Admin numbers do not have to be added if not wanted. For admin numbers to access the GPS unit, the users will also need to know the GPS units password.

To add admin numbers, send message "admin 123456 XXXXXX". XXXXXX is the number you want to add as admin number. Up to 4 admin numbers may be added, all will be able to control the unit and will recive text notifications when the unit is in SMS mode. Only the master number should be used to add numbers to the unit.

Setting password
Send message "password 123456 XXXXXX". XXXXXX is a new password of your choice. Password must be at least 6 characters and may be numbers or letters. If the password contains letters, they must all be lower case. Note that if the password is forgotten, the unit will need to be reset at the factory.

SMS Commands
Below instructions assume XXXXX is the password