DS-K3Y411BX

6 pairs of IR light detectors: Permissions validation and anti-tailgating. Self-detection, Self-diagnostics, and automatic alarm. System will cancel the passing permission if a person does not pass through the lane within the valid passing duration. Door remaining open when fire alarm triggered: The barrier will open automatically when alarm is triggered. Easy to configuration and maintenance by PC web function. Applicable to indoor and outdoor scenes, whether it is scenic spots, gyms or bus stations. View Less View more