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Werma Signaltechnik 645 810 55 Siren Element 645 For KombiSIGN 71 Werma Signaltechnik 645 810 55 P The Werma Signaltechnik 645 810 55 is a Siren Element with Self Adjusting Sound Output for KombiSIGN 71 The siren element adjusts its sound output to the ambient noise by emitting a sound which is well audible without being irritating loud P Werma Signaltechnik 645 810 55 Siren Element 645 For KombiSIGN 71
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