Active Photoelectric Single Infrared Beam Sensor Barrier Detector Alarm System Features: This is an upgraded version of a single-beam sensor, featuring the latest LED indicator light and more SMT components compared to older models. It offers improved stability and reliability. When the infrared beam is interrupted, the relay outputs a switch signal. It is suitable for use with parking barriers, pedestrian gates, and vehicle gates as a presence detector. It can also be used for anti-intrusion detection on windows, doors, and passageways. 1. Operating distance: 2 to 15 meters. For short-distance installation, the lens cover may be removed to prevent false triggering due to excessive infrared intensity. 2. Relay output is a dry contact (voltage-free) switch signal upon beam interruption. 3. Supports both normally open (N/O) and normally closed (N/C) configurations. 4. Compatible with access control systems, parking barriers, and alarm systems. 5. Powered by 12V DC. Specifications: 1. Single-beam infrared sensor with LED indicator light. 2. Anti-glare design rated up to 50,000 lux, minimizing interference from ambient light or vehicle headlights. 3. Sealed housing for protection against rain, fog, dust, and insects. Automatic gain control (AGC) circuit maintains consistent detection sensitivity under varying weather conditions. 4. High resistance to radio frequency interference (RFI) and electromagnetic interference (EMI). 5. High-power infrared transmitter with 90% sensitivity margin. 6. High-performance infrared receiver tube using low-power processing technology. 7. Adjustable beam interruption duration for enhanced flexibility and adaptability. 8. Professional optical housing designed to prevent optical interference. Package Includes: 2 x Infrared Beam Sensors