Werma-Signaltechnik-Clean SIGN-Wall-Mount-Continuous-Tone-Werma-Signaltechnik-695-300-55-P-The-Werma-Signaltechnik-695-300-55-is-a-Clean SIGN-Wall-Mount-LED-Signal-Tower-for-use-in-cleanroom-applications-The-Clean SIGN-has-been-specially-developed-&-constructed-for-use-in-food-&-hygiene-areas-as-well-as-cleanroom-applications-P-P-The-Clean SIGN-has-been-specifically-conceived-&-developed-for-use-in-areas-with-strict-hygiene-requirements-Consequently-it-is-equipped-with-a-series-of-so