The Central Station Alarm Association (CSAA) announced that Per Mar Security Services, Davenport, Iowa, renewed its CSAA Five Diamond Certification.

This certification testifies that 100 percent of their central station operators have achieved proficiency and certification by passing the CSAA Central Station Operation Training Course Level I.

Established in 1953, Per Mar Security Services is a family-owned business that operates 21 branch offices located throughout Iowa, Illinois, Wisconsin, and Minnesota. For more information,