Temperature Measuring + Metal Detector Gate AI-F 2pcs Infrared sensors accurately senses the number of people passing through; 4pcs metal detectors; Simultaneous alarm with sound and light; Temperature detection tolerance: ± 0.5 ℃ (at room temperature) Voltage: AC180V ~ 250V, 50-60HZ; Power: 35W; Net weight: 51.5kg; Inner frame dimension: 2000mm(H)×700mm(W)×500mm (d); Outer frame dimension: 2220mm(H)×820mm(W)×520mm (d)