A packaged cellular modem system, comprising: a printed circuit board upon which said modem system is configured; at least one capacitor having electrodes, coupled for receiving power from a DC power source, a DC-to-DC converter having inputs coupled to said electrodes,, a cellular modem coupled to an output of said DC-to-DC converter, an antenna coupled to the said cellular modem through a first intrinsic safety barrier circuit, a second intrinsic safety barrier circuit coupled to an output of said cellular modem; a microcontroller control section including a microcontroller coupled to a boost regulator having an output coupled to said electrodes, for receiving power, and a metrology jumper coupled between said microcontroller and a ground pin; input/output connectors coupled to said cellular modem; an encapsulation material providing a potted area of said printed circuit board which is configured to pot said capacitor, said DC-to-DC converter, said cellular modem, said second intrinsic safety barrier circuit, and said microcontroller control section; a Subscriber Identity Module card inserted into a Subscriber Identity Module connector, the Subscriber Identity Module connector being coupled to said cellular modem by said second intrinsic safety barrier circuit; light emitting diodes coupled to said microcontroller, wherein said Subscriber Identity Module card and said light emitting diodes are in a non-potted area of said printed circuit board; a visible light transparent Subscriber Identity Module card access cover being configured over said Subscriber Identity Module card and over said light emitting diodes; the visible light transparent Subscriber Identity Module card access cover having a hinge pivoted to an encapsulation separator for lifting said visible light transparent Subscriber Identity Module card access cover to expose said Subscriber Identity Module card for providing access thereto. a printed circuit board upon which said modem system is configured; at least one capacitor having electrodes, coupled for receiving power from a DC power source, a DC-to-DC converter having inputs coupled to said electrodes,, a cellular modem coupled to an output of said DC-to-DC converter, an antenna coupled to the said cellular modem through a first intrinsic safety barrier circuit, a second intrinsic safety barrier circuit coupled to an output of said cellular modem; a microcontroller control section including a microcontroller coupled to a boost regulator having an output coupled to said electrodes, for receiving power, and a metrology jumper coupled between said microcontroller and a ground pin; input/output connectors coupled to said cellular modem; an encapsulation material providing a potted area of said printed circuit board which is configured to pot said capacitor, said DC-to-DC converter, said cellular modem, said second intrinsic safety barrier circuit, and said microcontroller control section; a Subscriber Identity Module card inserted into a Subscriber Identity Module connector, the Subscriber Identity Module connector being coupled to said cellular modem by said second intrinsic safety barrier circuit; light emitting diodes coupled to said microcontroller, wherein said Subscriber Identity Module card and said light emitting diodes are in a non-potted area of said printed circuit board; a visible light transparent Subscriber Identity Module card access cover being configured over said Subscriber Identity Module card and over said light emitting diodes; the visible light transparent Subscriber Identity Module card access cover having a hinge pivoted to an encapsulation separator for lifting said visible light transparent Subscriber Identity Module card access cover to expose said Subscriber Identity Module card for providing access thereto. input/output connectors coupled to said cellular modem; an encapsulation material providing a potted area of said printed circuit board which is configured to pot said capacitor, said DC-to-DC converter, said cellular modem, said second intrinsic safety barrier circuit, and said microcontroller control section; a Subscriber Identity Module card inserted into a Subscriber Identity Module connector, the Subscriber Identity Module connector being coupled to said cellular modem by said second intrinsic safety barrier circuit; light emitting diodes coupled to said microcontroller, wherein said Subscriber Identity Module card and said light emitting diodes are in a non-potted area of said printed circuit board; a visible light transparent Subscriber Identity Module card access cover being configured over said Subscriber Identity Module card and over said light emitting diodes; the visible light transparent Subscriber Identity Module card access cover having a hinge pivoted to an encapsulation separator for lifting said visible light transparent Subscriber Identity Module card access cover to expose said Subscriber Identity Module card for providing access thereto. light emitting diodes coupled to said microcontroller, wherein said Subscriber Identity Module card and said light emitting diodes are in a non-potted area of said printed circuit board; a visible light transparent Subscriber Identity Module card access cover being configured over said Subscriber Identity Module card and over said light emitting diodes; the visible light transparent Subscriber Identity Module card access cover having a hinge pivoted to an encapsulation separator for lifting said visible light transparent Subscriber Identity Module card access cover to expose said Subscriber Identity Module card for providing access thereto.