A point of sale terminal including a housing defining at least one interior location and at least one opening from the outside through which an insect can enter the at least one interior location, point of sale electronic circuitry located within the housing, at least one light source located within the housing and being operative to illuminate at least one region adjacent the at least one opening and light source driving circuitry operative to cause the at least one light source to output radiation of a type which repels an insect otherwise seeking to enter via the at least one opening.