Werma signaltechnik continuous pulse electronic buzzer 2 8khz 111 series werma signaltechnik 111 000 55 p the werma signaltechnik 111 000 55 is a 24v continuous pulse electronic buzzer this buzzer is suitable for panel mounting it has a sound level of 80db p werma signaltechnik 111 000 55 continuous pulse electronic buzzer 24vdc 2 8khz