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Noise Blocker XL1

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Uploaded by on May 6, 2009

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Science & Technology

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Standard YouTube License

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  • That's not a SPL meter. Anemometer is used to measure windspeed (CFM). The fan is fairly quiet because it isn't moving much air.

  • @lcortier

    XL1 = 1000rpm

    XL2 = 1500rpm

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  • good job

  • lol, the db meter can't pickup the XL1 sound @ 5V and only 8-9 db up to 9V ??? Amazing !

    Which model is it ? 1000 rpm, 1200 rpm ?

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