Acceleration sensors; Alarm sensors; An optical metrology inspection system comprised of a light source, one or more cameras and sensors in communication with computer software and hardware; Electric or electronic sensors worn by a human being for accessing media; Electric sensors; Electric, electronic, or electrochemical oxygen monitors and sensors for environmental use; Electrical sensor apparatus for sensing the presence or absence of individuals or objects by contact or pressure; Electronic proximity sensors and switches; Environmental monitoring system comprised of meters and sensors that measure pressure, humidity, temperature and includes alarm and reporting functions; Light systems comprising light sensors and switches; Optical sensors; Pressure sensors; Sensors for determining position, velocity, acceleration and temperature; Sensors for measuring human biometric data, not for medical use; Sensors for scientific use to be worn by a human to gather human biometric data and also including a wearable media headset sold as a unit; Sensors for the determination of temperatures, positions and distances; Temperature sensors