The company's principal activities are to develop, assemble and market less-lethal, conducted energy weapons primarily for use in the law enforcement and corrections market. the company's principal products are the advanced taser and air taser. the advanced taser is sold with an integrated laser sight and a built-in memory option to record the time and date of up to 585 firings. the advanced taser has a comparable or lower injury rate than other less-lethal weapons with no adverse after-effects. the air taser product consists of cartridge electrified probes, an optional laser sight and a number of holstering accessories. these products are sold to the private security, military and consumer markets. the company became publicly held in 2001. advanced taser accounted for 80% of 2001 revenues; Air taser, 19% and train, freight services and equipment, 1%.