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Description: This Piezo Alarm is a great option for when you need an audible alarm (or are just looking for a way to prank your friends). This alarm has 16 different output options that can be changed with the DIP switches on the unit. Select Continuous, Chime, Intermittent, Warble, or Pulsating and amaze your friends.


  • Operating Voltage: 5-16Vdc
  • Operating Frequency: 3KHz
  • Warble Frequency: 2.8KHz to 3.2KHz
  • Diameter: 35.8mm, Height 35.7mm
  • 103 dB(A) at 16V at 61cm
  • 90 dB(A) at 5V at 61cm


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Customer Comments

  • How hard do you think it would be to crack into that dip switch so that an Arduino Uno could control the tones ?

    • I am not sure but I think it would be easier to use a normal piezo buzzer and control the tones directly from the Arduino. You could use the tone(pin, frequency, duration) function to do so.

Customer Reviews

4 out of 5

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1 of 1 found this helpful:

Loud & Easy to use.

This Alarm arrived fast and was very easy to use I was amazed at the volume, I would buy this again in a heartbeat.