Reddit reviews TestHelper SW-525A Sound Level Meter Tester 30-130db Large Screen LCD Display Wall Hanging Type Decibel Noise Measuring with Alarm (Sound Level Meter)

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Large Screen LCD Display

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1 Reddit comment about TestHelper SW-525A Sound Level Meter Tester 30-130db Large Screen LCD Display Wall Hanging Type Decibel Noise Measuring with Alarm (Sound Level Meter):

u/aftli · 1 pointr/homelab

Ah is it something like this one?

I thought maybe it was some kind of custom LCD display and you had it hooked to some Arduino or something with a microphone attached to it.