Southwest Microwave high-performance infrared and dual technology sensors complement our suite of outdoor intrusion detection solutions and are ideal as an additional security layering strategy.
Southwest Microwave high-performance infrared and dual technology sensors complement our suite of outdoor intrusion detection solutions and are ideal as an additional security layering strategy for optimal protection.
Model 460B is a long-range high performance, outdoor active infrared sensor for detection of walking, running, and crawling intruders. The Model 460B consists of two 2 m (6.7 ft) columns – a transmitter unit, which is the source of invisible, active infrared emissions, and a receiver unit, which receives the signals, analyzes them, and detects intruders passing between the two units. Equipped with six high-power infrared transmission beams, the Model 460B creates an undetectable protection zone of up to 100 m (328 ft). Model 460B cannot be covered, masked or blocked without causing an alarm, as multiple beams in each column are multiplexed between transmitter and receiver. Beam frequency channel selection allows multiple beams in a single column to operate without interference.
Model 455B is a cost-effective, flexible outdoor active infrared detection sensor designed for short range applications. This unit consists of a transmitter, which is the source of invisible pulsed active infrared emissions, and a receiver, which receives the beam signals, analyzes them, and detects walking or climbing intruders passing between the two columns. Equipped with four infrared beams, the Model 455B creates an undetectable protection zone of up to 50 m (165 ft), and cannot be covered, masked or blocked without causing an alarm. Multiple beam paths must be interrupted simultaneously for an alarm to be generated, reducing nuisance alarms caused by small animals, birds or blowing debris. The unit’s rugged modular construction allows beam sensors to be adjusted independently into any configuration. The unit is equipped with four field-selectable channels to prevent interference between adjacent or stacked sensors.
Model 420 Passive Infrared (PIR) Intrusion Sensor features a four-zone, continuous and gap-free curtain sensing pattern that detects intruders by sensing temperature (heat radiation) difference between the background scene and intruder. The pattern includes long, medium and short range detection segments, plus a controllable creep field that protects the area surrounding the mounting pole, which eliminates the detection ‘dead zone’ characteristic of traditional PIR sensors.
The latest detector and signal processing technology, plus precision mirror optics, allow Model 420 to operate in broad-ranging environments. Double optical filtering, Digital Signal Processing (DSP), Signal Shape Analysis (SSA), and Adaptive Threshold Decoding (ATD) ensure reliable operation under changing climatic conditions. Nuisance alarms from rain, snow, wind, and fog are virtually eliminated.
MS15 and MS16 outdoor, dual technology motion sensors offer the unique combination of Doppler microwave and passive infrared technology to provide volumetric protection for a variety of exterior applications. With a 15 m x 12 m (50 ft x 40 ft) detection pattern, MS15 and MS16 sensors are designed for reliable detection of upright / walking and running targets. The MS16 High Security Motion Sensor offers enhanced detection capability for prone (crawling) targets.
The sensors feature two microwave receiving channels with the ability to eliminate vibration as sources of false alarms. A dual element infrared detector ignores normal temperature variations, yet is highly responsive to rapid infrared changes created by an intruder. Proprietary integrated circuit design provides enhanced digital signal processing (DSP) for microwave and passive infrared technologies.