Abstract: A wireless electronic initiation device for a detonator via a shock tube comprises an initiation member for initiation the shock tube and an energy storage for providing initiation energy to said initiation member. The initiation device comprises also a wireless communication device with a receiver for receiving an initiation command in a wireless way from an initiation arrangement. The initiation device comprises also a controller, which is configured to determine said received initiation command and based on said received initiation command configured to activate said initiation member to ignite the detonator initiator (108) by the energy fed from the energy storage.

Abstract: Directed fragmentation weapon including a housing having front, back, top edge, bottom edge and side edge walls defining a closed chamber therein. The front wall is formed as a pellet matrix construction including a plurality of compartments formed as recesses on the surface facing the inside of the chamber. The compartments are substantially similar in shape and size to each other and a plurality of pellets of fixed diameter within the matrix. Each compartment contains one pellet therein. Explosive material is placed into the chamber, which is sufficient to propel the pellets from the matrix, and a detonator arrangement for exploding the material. Depths of a part or all of the compartments measured perpendicularly to the front wall and from the inner surface of the front wall are defined by equation h=C×A??(I) wherein equation coefficient C is 0.1-3, and A is the pellet diameter.