DRH has 38 years of experience installing intrusion alarms, fire safety, sprinkler monitoring, access entry control and CCTV camera systems. We proudly install GE NetworX burglar alarm systems. We service and monitor all brands of alarm, access and CCTV systems. Our 24 hour UL monitoring facilities are interlinked to provide seamless redundant central monitoring service. Home or business, DRH is your security specialist.