New Audible Alert Solutions: Compact Piezo Buzzers and IP67 Waterproof Models

June 8, 2026

Shogyo International is pleased to announce the addition of three new piezo buzzers to our product portfolio, expanding our audible alert solutions for compact electronics, industrial controls, outdoor equipment, and OEM assemblies.

These new models include two compact pulse tone buzzers — introduced as the World’s Smallest Piezo Pulse Tone Buzzer — along with a new Low Profile Waterproof Buzzer designed for environments where moisture, dust, and space constraints are key design considerations.


World’s Smallest Piezo Pulse Tone Buzzer – Fast Pulse Version

The 32PFC4120PH is a compact piezo buzzer featuring a fast pulse tone output in a small 14 mm package. Designed for space-constrained applications, this model provides strong audible output with low current consumption.

  • Model: 32PFC4120PH
  • Tone Nature: Fast Pulse
  • Rated Voltage: 12 VDC
  • Operating Voltage: 3.5 – 16 VDC
  • Sound Output: 90 dBA min. at 10 cm
  • Max. Rated Current: 8 mA
  • Frequency: 4000 ± 300 Hz
  • Operating Temperature: -20°C to +70°C

This fast pulse version is well suited for control panels, instrumentation, alarm systems, industrial electronics, and compact embedded designs requiring a clear, recognizable alert tone.


World’s Smallest Piezo Pulse Tone Buzzer – Normal Pulse Version

The 32PNC4120PH offers the same compact form factor as the fast pulse version, with a normal pulse tone profile for applications requiring a slower audible cadence.

  • Model: 32PNC4120PH
  • Tone Nature: Normal Pulse
  • Rated Voltage: 12 VDC
  • Operating Voltage: 3.5 – 16 VDC
  • Sound Output: 90 dBA min. at 10 cm
  • Max. Rated Current: 8 mA
  • Frequency: 4000 ± 300 Hz
  • Operating Temperature: -20°C to +70°C

By offering both fast pulse and normal pulse options, Shogyo gives engineers greater flexibility when designing audible indicators for different operating states, warnings, or user notifications.


Low Profile Waterproof Buzzer

The 254PF3120LA is Shogyo’s new Low Profile Waterproof Buzzer, designed for applications exposed to moisture, dust, outdoor conditions, or other demanding environments.

  • Model: 254PF3120LA
  • Waterproof Rating: IP67
  • Tone Nature: Fast Pulse
  • Rated Voltage: 12 VDC
  • Operating Voltage: 9 – 26 VDC
  • Sound Output: 88 dBA min. at 10 cm
  • Max. Rated Current: 12 mA
  • Termination: Lead wire, UL1007 AWG #26
  • Operating Temperature: -20°C to +70°C

This low-profile IP67 buzzer is a strong fit for outdoor equipment, access control systems, transportation products, industrial controls, battery-powered devices, and assemblies where environmental protection is required.


These additions further expand Shogyo’s piezo buzzer and audible indicator offering, giving OEMs more options for compact, efficient, and reliable signaling solutions.

Not sure which buzzer fits your application? Our team works with engineers and buyers at every stage — from initial design to production. Get in touch or request a quote today.