Pepperl Fuchs-VAZ-BUZZER/LT-RD of Industrial Sensors.buzzer element VAZ-BUZZER/LT-RD, buzzer element with acknowledgment, AS-Interface, Good all-round visibility, Shrill, continuous tone, with 80 dB, Long service liefe due to long-lasting LEDs, Simple connection via screw terminal, splash and dust resistant, Degree of protection: IP 65, Acknowledge/silence the audible signal by lightly pressing the frontal area