A surge protection device has a modular construction so that a manufacturer can assemble the parts in any combination desired by a customer. The device includes at least one ultrasound emitting device secured to the subject. The password may be compressed, for example, using a Huffman compression algorithm, and may be subsequently encrypted using a short secret as a key. Thereafter, application objects are instantiated from the selected ones of the set of previously defined application object templates in a build of the specified application. The agrochemical formulation composition comprising at least one agrochemical active component and a solvent, which solvent comprises one or more dialkyl carbonates of the formula CO, each of Ra and Rb being a linear or branched alkyl group of 3 to 6 carbon.