【Universal Voltage Compatibility】Operates across 12‑265V AC/DC, directly connecting to all standard door operators without or adapters. 【Instant Motion Response】Synchronizes with door start, stop, obstacle detection, and fault events, providing immediate visual alerts for enhanced safety awareness. 【Versatile Door Fit】Works with sliding doors, retractable gates, garage doors, factory barriers, courtyard entrances, and automatic passage systems. 【Tool Free Installation】Simple two‑wire hookup with included mounting hardware enables fast, hassle‑free setup on any door equipment. 【Build】IP54 rated plastic housing withstands rain and dust. Reliable operation from -20°C to +60°C for indoor and outdoor use.