J22 tunable-diode, laser-absorption spectroscopy (TDLAS) natural gas analyzer has been upgraded with better data handling and network connectivity, an improved user interface, and enhanced modularity for optimal field serviceability. These updates include support for Modbus TCP/IP for communicating with analyzers from a central network location in a bidirectional, secure point-to-point manner. Combined with an added native web server, users can easily monitor, configure and service J22 remotely.