Carbon dioxide detectors; Carbon monoxide detectors; Electron capture detectors; Electronic apparatus, namely, motion detectors; Electronic monitors for monitoring flowmeters; Fire detectors; Infrared detecting apparatus; Infrared detection apparatus; Infrared detectors; Infrared detectors for use in military, law enforcement, civil, scientific and industrial applications; Optical apparatus, namely, a non-lethal security device that uses a light source to detect, warn, repel, temporarily blin...