A method for performing highly accurate PCR employing an assembly, a heated cover and an internal computer. The system includes a venturi vented to the ambient atmosphere, such that the venturi siphons air from the ambient atmosphere when the venturi reaches a choked flow condition, and the system stores the siphoned air in a charging tank to supply a water storage tank. One end of the connector connects the catch to the lock plate, and an opposite end of the connector connects the pawl to the lock plate. Edition content to be provided to the mobile device is determined based on the device information.