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Werma Signaltechnik LED Buzzer Combination 450 with Acknowledgement Function Werma Signaltechnik 450 100 55 P The Werma Signaltechnik 450 100 55 is an LED Buzzer Combination 450 with Acknowledgement Function for an AS Interface reg The combination unites a very bright light signal with the powerful sound of a buzzer By gently pressing the front surface of the product the audible signal can be turned off in a matter of seconds This acknowledgement signal is fed back to the master via the
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