Tech2 is offered to the aftermarket in the same specification that is currently supplied to GM franchised dealers. The GM will be available direct from GM who are responsible for developing and building the machine. Tech2 has the perfect screen, it Can arbitrary adjustment the screen brightness and display diagnostic data .and Wave Oscilloscope form diagram and nine sensors or activator test . Tech2 have function of coding and programming with all of model,. RS232 connection Can Convinent to connect future expand equipment, it's easy to use, it has hand held cable, You can use single hald to operate the tester. Tech2 is to equip with American GM..Shanghai GM .Opel .original diagnostic software and cables.(You can to option) Tech2 supported all of GM model system diagnostic system Diagnostic of Engine chassis and body have double way control function. It can replay and to keep in the faulty code and clear faulty and to reset the system details. To keep watch on status of the automoble diagonostic test.