Werma signaltechnik led flash beacon with continuous pulse tone werma signaltechnik 42131068 the werma signaltechnik 42131068 is an led flash beacon with a continuous pulse tone for two stage signalling the led buzzer has been designed for base mounting the 92db led flashpulse tone is easy to connect and the service life of the led flash is 4 million flashes werma signaltechnik 42131068 led buzzer combination yellow 230vac