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2. Connect the wires:
Functions:
1. Set control number:
Command: Number+pass+blank+serial
Sample: 139504434650000 1
13950443465 is mobile number, 0000 is password, 1 is serial means the first
number.
When the tracker reply “SET OK” means the setting is ok.
You can set the second and third control number also.
2. Working mode:
ST-900 has both SMS and GPRS working mode.
1. If you want to control it by mobile and use SMS only, you can get Google
location from you mobile, then you can choose SMS mode.
2. If you want to monitor the tracker online real time, and you want to install the
tracker data for years, you should choose the GPRS mode.
You can send SMS to choose the mode.
SMS Mode:
Command: 700+Password
Sample: 7000000
Reply: SET OK
When ST-900 receives the command, it will change to SMS mode.