MMF invests an additional $0.425 million in Potter Electric Signal Company, a designer and manufacturer of electronic controls and monitoring devices for the fire sprinkler and security markets, to support the acquisition of Elmdene International, Ltd. by its subsidiary, Potter UK Holdings Ltd. Elmdene specializes in the design and production of sophisticated fire and security detection products as well as a comprehensive line of dedicated power supplies used in fire protection, CCTV, intruder alarm and access control applications.