T6603 Arduino library for using the Telaire 6603-5 CO2 Sensor Documents: Telaire 6603-5 CO2 Specification: http://www.mcp.si/doc/GE_Telaire_6603_Specification.pdf Comunication: http://www.mcp.si/doc/GE_Telaire_CO2_UART_Comminication.pdf