Sensors and detector units for use in controlling the actuation and operation of automotive safety apparatus and equipment; Electrical sensor apparatus for sensing the presence or absence of individuals or objects by contact or pressure; Sensors for determining position; Sensors for determining temperature; Position sensors for vehicles; Sensors for determining velocity; Sensors for determining acceleration; Sensors for determining position, velocity, acceleration and temperature; Proximity sensors; Electronic devices for assisting care giving for seniors or people needing assistance comprised of sensors for determining status of person and apparatus for sending electronic alerts to care givers; Motion detectors; Security control panels and motion detectors; Millimeter wave equipment for detecting concealed objects; Sensors for the determination of temperatures, positions and distances; Wearable electronic proximity sensors with embedded contact tracing software for distance measuring among wearers; Electrical reactors