All component parts are rated for Class 1; Division 1, Group C, D hazardous areas. These advanced field devices consist of a CXT low power gas detection sensor and wireless transceiver packaged in a single enclosure. Power is provided by a disposable “C” cell battery pack capable of continuous operation for greater than 60 days. Additional power options include a Smart Rechargeble battery with a run time of 5-6 months, a disposable “D” cell battery pack with a run time of 9 months and solar panel providing continuous operation.