Brian Duffy becomes the third generation of the Duffy family to lead Per Mar.

Per Mar Security Services will continue to operate its Bloomington, Minn. office, monitoring customers from their UL certified professional monitoring center and providing key and locksmith services.

Per Mar Security Services, a provider of total security solutions for residential and commercial clients based in Davenport, Iowa, announced it has acquired Monument Electronics based in Merrillville, Ind.