HikVision DS-K3B801SX-L/MPg-Dp65

24 pairs of infrared sensors, 650 aisle width  (face recognition module need purchase separately ) AISI304 stainless steel with the thickness of 2 mm (0.08") Anti-collision function, fail safe for emergency situation Speed of throughput: 20 to 60 persons/minute Supports combination access authentication Self-detection, self-diagnostics, and automatic alarm Audible and visual alarm includes intrusion alarm, reverse passing alarm, tailgating alarm, etc.