Electronic detection, monitoring, counting, tracking, steering, and locating components, apparatus, and instruments, for detecting and interpreting heat change, heat distribution, and movement of people, animals, vehicles, and machinery, for use in safety systems, security systems, fire detection systems, manufacturing process control systems, laboratory measurement systems, queue monitoring, retail analytics and automatic electric door controllers; anti-intrusion, burglar, and fire alarms; electronic apparatus and instruments using arrays of infrared detectors for detecting the presence of infrared laser beams, namely, laser spot and other beam detectors; electronic apparatus and instruments using arrays of infrared detectors for detection and analysis of gas, for use in safety systems, security systems, fire detection systems, manufacturing process control systems, and laboratory measurement systems; electronic apparatus and instruments using arrays of infrared detectors for detection and interpretation of chemical and biological activity, for use in safety systems, security systems, fire detection systems, manufacturing process control systems, and laboratory measurement systems; thermal imaging apparatus and instruments used to measure temperature; facilities management devices for controlling building environmental, security, access, and elevator functions, namely, electronic movement, presence, and temperature flow detectors connected to control devices that analyze output from the detectors and provide status and control information; electronic apparatus and instruments using arrays of infrared detectors or other detectors to measure presence, occupancy, movement of people in commercial or office environments to provide information for logistical analysis of facilities use and operation; healthcare monitoring systems, namely, electronic devices comprising detectors based on arrays of infrared detectors connected to a control device that analyses output from the detectors and providing information regarding the presence, movement, location, and activity of old, infirm, incapacitated, or vulnerable people; automatic electrical door controllers. electronic devices for tracking and counting vehicles on roads and in parking lots, comprising one or more electronic vehicle detectors using detector arrays connected to a processor with tracking, counting, and output signaling capability; and parts therefor