An emission control device for use with stationary or mobile gas-fueled internal combustion engines is described, which is placed in the fuel supply line and operates with full fuel authority. The kit may be useful as an educational tool or toy for the exploration of mathematical concepts such as multiplication, exponents, and logarithms. Once the failure is characterized, it is reported to the system for corrective maintenance including dynamic andor boot time processor deconfiguration or preventive processor replacement. A minimum force required to slide the exposed first segment over patient tissue is greater than a minimum force required to slide the covered first segment over the patient tissue.