Sound Sensor - UI-5101



The Sound Sensor houses a sensitive microphone designed to make measurements of relative intensity of sound and display audio waveforms of sound levels between 45 and 100 dB when used in conjunction with the 550 or 850 Universal Interface and PASCO software.

The sensor has a built-in electret condenser microphone and an auxiliary microphone is also included. When the auxiliary microphone is connected, the sensor's built-in microphone is turned off.

Typical Applications

  • Explore basic sound intensity
  • Measure the speed of sound
  • Investigate beats
  • Study the doppler effect
  • Conduct voice studies
  • Learn musical instrument overtones

Special Features

For complete investigations centered around sound.

  • Measures sound waveform
  • Auxiliary microphone on a wire
  • Excellent frequency response
  • Auto-identification on 550/850 interfaces


  • Sound Sensor
  • Auxiliary Microphone
  • 8-pin DIN Extension Cable
  • Sensor Mounting Rod
  • Specifications

    Frequency Response
    • 20 to 9,000 Hz
    Decibel Range
    • 45 dB to 100 dB
    Signal-to-Noise Ratio
    • < 60 dB
    Output Voltage
    • ± 10 volts
    • Two stages condition low-level signals
    Pin Configuration
    • 8-pin DIN plug on case
    Sensor ID
    • ± Auto-identification on 550/850 interfaces

    Buying Guide

    Interface Required

    A 550 Universal Interface or 850 Universal Interface is required for use with this product.  Compare the 550 and 850.

    Have specific questions or need more information? Contact Teacher and Technical Support.  We're here to help!

    Software Required

    SPARKvue software or PASCO Capstone software may be used. PASCO Capstone is available for Mac and Windows. SPARKvue is available for Mac, Windows, iOS, Android and Chromebooks.

    Learn more about Bluetooth Compatibility.