Optical sensors; Sensors for determining position; Sensors for determining velocity; Temperature sensors; Pressure sensors; Proximity sensors; Infrared sensors; Motion sensors; Liquid level sensors; Motion recognizing sensors; Optical position sensors; Particulate matter (PM) sensors; Motion sensors for security lights; Mass air flow (MAF) sensors; Gas sensors for measuring gas concentration; Light systems comprising light sensors and switches; Sensors for measuring concentrations of chemicals in water; Remote sensors for use in measuring thermal and infrared radiation energy waves; Sensors for measuring industrial process parameters by measurement of light dilution, not for medical use; Radiation sensor apparatus; Microwave sensor apparatus
Electrical and Scientific Apparatus