Radio Shack Analog Sound Level Meter 50-126dB Sound Capture Range 33-4050 NIB. Brand New · RadioShack (3) $59.99. or Best Offer. $10.83 shipping. The overall SPL accuracy of all three of my Radio Shack sound level meters -- 2 analog and 1 digital 33- 2055-- were within 1 dB of 75 dBC SPL compared to the Audio Control. I then checked the frequency response, comparing it while set to C weighting and slow, with pink noise, 1/3 octave band by 1/3 octave band, to the Audio Control RTA in the.
I measured two different Radio Shack SPL meters compared to a number of known-accurate microphones: Comparison of Ten Measuring Microphones It seems to me that fretting over tiny variations less than 1 or 2 dB is a waste of time, especially considering how badly skewed all rooms are at low frequencies.. For your consideration.A Radio Shack Analog Sound Meter in Very Good condition! At Evolution Music of Logan Square, we attempt to highlight cosmetic defects (if any) by picturing every angle of every piece of gear so you know exactly what you are getting. We always picture any and all accessor.