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Thread: Vintage Decibel Meter vs Smartphone App

  1. #1
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    Vintage Decibel Meter vs Smartphone App

    I was given this Sound meter by a retired aviation mechanic. One of the batteries is special so as soon as I locate one I'll be in business. I am wondering about the accuracy of it compared to some of the smartphone apps for decibels. I want to use it to measure sound levels of portable generators.
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    Miller Challenger 172
    Miller Thunderbolt AC/DC 225/150
    Miller Maxstar 150 STL
    Victor 100C
    Victor Journeyman
    Oxweld OA
    Harris O/A
    Smith O/A little torch

    No, that's not my car.

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  3. #2
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    Re: Vintage Decibel Meter vs Smartphone App

    Quote Originally Posted by bigb View Post
    I was given this Sound meter by a retired aviation mechanic. One of the batteries is special so as soon as I locate one I'll be in business. I am wondering about the accuracy of it compared to some of the smartphone apps for decibels. I want to use it to measure sound levels of portable generators.
    Smartphone apps will vary depending on how specific their programming is to your actual phone for frequency sensitivity... but I would think a decent phone would be accurate within a db...

    If it's a 22 or 45 volt batt you could just stack some 9volts together

  4. #3
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    Re: Vintage Decibel Meter vs Smartphone App

    It's actually a 30 volt, about $30 on Amazon
    Miller Challenger 172
    Miller Thunderbolt AC/DC 225/150
    Miller Maxstar 150 STL
    Victor 100C
    Victor Journeyman
    Oxweld OA
    Harris O/A
    Smith O/A little torch

    No, that's not my car.

  5. Likes ronsii liked this post

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