TS2222 Reliability Alloy steel tripod hub and SUS304 stainless steel casework & tripod arms ensure long-lasting durability Power conservation. Electro-magnetic locks remain in “standby mode” until turnstile is activated Patented oil lubrication system reduces need for maintenance High quality electrical components Safety Features Tripod-arms unlock & drop during emergencies power loss All smooth fiish. No exposed screws or fasteners Visual indicator for access granted (or denied) Ergonomic design makes card and figerprint authentication fast & simple for users. Secure. Supports Anti-tailgating