



2-Pt. Acoustical Calibrator - Class 2
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
2-Pt. Acoustical Calibrator - Class 2For calibration of all Sper Scientific digital sound meters or any sound level meter with 1 or microphone. Conforms to ANSI S1. 40 1984 and IEC942 1988 Class 2 standards for acoustical calibrators. Simply place the calibrator on to the digital sound meters microphone, turn on the calibrator, and adjust the decibel meters reading to either 94 or 114 dB. Operates at a frequency of 1KHz 4% and with an accuracy of 0. 5 dB. Built in battery check. Easily
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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Love it!
Size: 5-Tier (Not included planks), Size: 5-Tier (Not included planks)
Years later it is still holding up! Don’t mind the mess! Worth it! Good size! And once it was up it was easy to put together! Love the style!
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Reviewed in the United States on October 26, 2025
★★★★★ 5
Easily assembled.
Size: 3Pack of 5 Tier (Not included planks)
Easily assembled, seems sturdy and built to last. Once attached to wall seems even sturdier than expected. Anchor pieces included but I choose to find studs to anchor to.
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Reviewed in the United States on November 12, 2025
★★★★★ 3
Good but misleading size
Size: 3Pack of 5 Tier (Not included planks)
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Reviewed in the United States on February 17, 2026
★★★★★ 5
Worked for pantry
Size: 3Pack of 5 Tier (Not included planks), Size: 3Pack of 5 Tier (Not included planks)
These turned out perfect t for a pantry. Just fyi get better dry wall anchors and you’re golden! Definitely takes two people to put up tho!
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Reviewed in the United States on February 14, 2026
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