The complete AEE Certified Energy Manager (CEM) preparation set: 146 practice questions in three formats — a printable, expert-prepared PDF with instant download; a Desktop Test Engine for Windows with two practice modes and offline access that simulates the real exam; and an Online Test Engine for any browser on Windows, Mac, Android, and iOS, with test history and performance review. A free demo lets you sample everything first, updates are free for 365 days, renewal afterward costs 50% of the standard price, and installations are unlimited.