Werma signaltechnik intermittent pulse tone electronic buzzer 80db werma signaltechnik 10901075 the werma signaltechnik 10901075 is a pulse tone electronic buzzer with a plug in screwable connection it is ideal for 225mm diameter installation in controlswitchgear panels the 24v acdc appliance is produced according to en 60947vde 0660 t100 werma signaltechnik 10901075 intermittent tone electronic buzzer 24vacdc