A method of digitizing an image using a portable imaging system to produce an image product. A user interface on a computing device may provide assessment information associated with an assessment of a user’s health. This reduces physical requirements of proximity for the users andor the subjects, alleviates the administrative the burden placed on the users to manage andor monitor individual therapy regimes, andor provides other enhancements over convention systems. Also, the system allows members of user groups so designated at the time the volume is encrypted, to be able to have access to the volume as long as their token was previously registered with the same Master Token as the user that encrypted the volume and as long as the token encrypting the volume was also a member of the authorized user group. The amine sensors described herein can easily detect amine molecules in a parts per billion range. In a compound mode of operation, the at least one dynamic clutch couples the second electric machine and the gearset.