Get to Know Your Team: Seton Medical Center Harker Heights is an 83-bed acute care hospital offering services such as Cardiology, Emergency Services and a Level IV Trauma Designated ER, General Surgery, Orthopedic Surgery, Total Joint Replacement, Gastroenterology, Diagnostic Services and more. Learn About a Day in the Life of a Monitor Technician: ResponsibilitiesThe Monitor Technicians functions include observation, identification, documentation and communication of various cardiac rhythms.