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Autonics
B2NB-B1D
Buzzer, Magnetic, Green Indicator, Ø22mm, 12-24VDC, 98dB, IP30, Continuous/Pulse Selectable
$22.00$22.00 -
Available Now! 
Available Now!Kacon
HRB-PS50IR-24V AC/DC
Buzzer, Ø30mm Hole, IP40, 24VAC/DC, Round, 80dB, Intermittent Sound
$12.14$12.14 -
Available Now! 
Available Now!Kacon
HRB-PS50IR-110VAC/DC
Buzzer, Ø30mm Hole, IP40, 110VAC/DC, Round, 80dB, Intermittent Sound
$5.53$5.53 -
Werma
110-000-67
Multi-Tone Sounder, 115VAC, 8 Tones, 100dB@1m, Black, Built-in Mounting, Ø72mm x 59mmH, IP65
$151.69$151.69 -
Available Now! 
Available Now!Transducers USA
TRIP-651-12SAD
Piezo Buzzer, 12VDC (4-16VDC), Fast Pulse Tone. 3 Pulses/Second. This Item Is No Longer Stocked in the US - Similar Options to Consider: TRIP-657-12SAD (Dual), TRIP-653-12SAD (Slow). TRO[-655SA (Dual)
$9.77$9.77 -
$19.64$19.64 -
Available Now! 
Available Now!Pfannenberg
23310630055
Audible Alarm, 100dB, 10-57VDC, Gray Housing, 80 Tones with 4 Stages, 120 x 100 x 95mm, PATROL PA 1 Series
$135.20$135.20 -
IDEC
HW1Z-P1F2PQ4R
Illuminated Buzzer (Red), Flashing, Intermittent Sound, 22mm, 12-24VDC, Super Bright LED Illumination, Finger Safe (IP40) Push-In Terminals, IP65 from Front, IP54 with Terminal Rubber Boot, HW1Z Series
$47.63$47.63 -
Menics
MW86N-00-S3
Signal Horn, 86mm Diameter, Wall Mount, 12-24VDC, Ivory Body, Adjustable Volume, 3 Sirens, Removable Horn Included, IP54 with Horn, IP43 without Horn
$73.85$73.85 -
Patlite
BSV-24PL-D
Audible Alarm, 75mm Square, 24VDC, MP3, PNP, Gray, MP3 Field Programmable, Long Playback(520 seconds)
$205.20$205.20 -
Werma
140-150-60
Multi-Tone Sounder, 115-230VAC, 32 Tones, 115dB@1m, Red, Wall Mount, Ø100mm x 110mmH, IP65
$146.56$146.56 -
$164.66$164.66
Buzzers are audible indicators used as critical alerts, alarms and notifications in a wide range of applications.
a.k.a. piezo buzzer, horn, siren, annunciator, sounder, beeper, multi-tone alarm