Some typical security measures include:
Access Control Via Card or Fingerprint
Motion Detection at Perimeter and Roof Line
Glass Breakage and Sound
Door Intrusion
Guard Shacks
Fencing
CCTV
Internal Security Cages W/ Access Control / Monitoring for High Dollar Product
Visitor Centralized Entry for ID Badges and Processing
Monitored Employee Ingress Egress with Metal Detection
Unauthorized Door Opening Alarms