A method for sharing a view presented on a touchscreen of a processing system. Alternatively, provided is a novel substance with high emission efficiency. The default quote identifies default values for a number of variables defining a default barcode printing supply product; at least one default quantity value and a price for the specified quantity of the default product. The core surface, envelope layer, intermediate layer and cover have Shore D hardnesses which satisfy the condition: core surface hardness\u2266envelope layer material hardness<intermediate layer material hardness>cover material hardness. Responsive to the verification of the consumer and the consumer actions, the reward server provides the corresponding reward in terms of a predefined amount of free mobile airtime to the consumer. Applicable in a wide variety of environments, such as of vehicle engines or machine, which may involve generation of excessive heat orand fire, where there is need to detect and warn of a condition of excessive heat orand fire, in a practical, reliable, robust, and cost effective manner.