A sensor system comprising: a body, comprising: a first side extension configured to mount to a helmet; a second side extension configured to mount to the helmet; a processing module; and a processing module support member coupled to the first side extension and the second side extension configured to accommodate the processing module, the processing module support member forming a chamber for housing the processing module and forming a first opening in communication with the first side extension and a second opening in communication with the second side extension, the processing module support member further comprising a cover fixed to the processing module support member and configured to protect the processing module; and a first sensor sub-assembly (34,68) comprising: a first cable (36,70) comprising a first plug configured to be plugged into the processing module, the first plug being exposed to the chamber via the first opening to thereby facilitate connection of the first plug to a corresponding plug on the processing module; and a first sensor positioned within the first side extension and communicatively coupled to the first plug via the first cable. a body, comprising: a first side extension configured to mount to a helmet; a second side extension configured to mount to the helmet; a processing module; and a processing module support member coupled to the first side extension and the second side extension configured to accommodate the processing module, the processing module support member forming a chamber for housing the processing module and forming a first opening in communication with the first side extension and a second opening in communication with the second side extension, the processing module support member further comprising a cover fixed to the processing module support member and configured to protect the processing module; and a first side extension configured to mount to a helmet; a second side extension configured to mount to the helmet; a processing module; and a processing module support member coupled to the first side extension and the second side extension configured to accommodate the processing module, the processing module support member forming a chamber for housing the processing module and forming a first opening in communication with the first side extension and a second opening in communication with the second side extension, the processing module support member further comprising a cover fixed to the processing module support member and configured to protect the processing module; and a first sensor sub-assembly (34,68) comprising: a first cable (36,70) comprising a first plug configured to be plugged into the processing module, the first plug being exposed to the chamber via the first opening to thereby facilitate connection of the first plug to a corresponding plug on the processing module; and a first sensor positioned within the first side extension and communicatively coupled to the first plug via the first cable. a first cable (36,70) comprising a first plug configured to be plugged into the processing module, the first plug being exposed to the chamber via the first opening to thereby facilitate connection of the first plug to a corresponding plug on the processing module; and a first sensor positioned within the first side extension and communicatively coupled to the first plug via the first cable.