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2-Pt. Acoustical Calibrator - Class 1

Marsoni M251S
Sale price$431.75
Pay 4 payments of $107.94 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
2-Pt. Acoustical Calibrator - Class 1For calibration of all Sper Scientific digital sound meters and any sound meter with a " microphone. The 850012 Sound Level Calibrator is used to calibrate the sensitivity of the microphone and sound level measuring equipment. The design is based on the feedback method to ensure a highly stable sound pressure level. This compact and ergonomic sound calibrator conforms to ANSI S1. 40 1984 and IEC60942 (2003) Class 1 standard, and is perfect for
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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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4.6 ★★★★★
Based on 1492 reviews
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G
Verified Purchase
Gardening 1
Waukegan, US
★★★★★ 1
FLAT
Flat as a pancake. No support. No fluff. very incomfortable. Returning,
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026
M
Verified Purchase
Magpie
Whiting, US
★★★★★ 3
Get their newer version. These were too flat.
Really thin/flat pillows
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Reviewed in the United States on May 11, 2026
A
Verified Purchase
Amazon Customer
Omaha, US
★★★★★ 2
Not great
I bought these pillows based on customer reviews. I got them and let them poof out after opening... But they are awful. They're soft but there's nothing to them. Very flat and not supportive. I'm literally buying different pillows tomorrow.
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Reviewed in the United States on April 25, 2026
C
Verified Purchase
Chrissy27
Waukegan, US
★★★★★ 5
Excellent
Extremely comfortable pillows. I would highly recommend
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Reviewed in the United States on May 25, 2026
I
Verified Purchase
I love the color and how the covers fit. Delivery service was on time. I have absolutely no complaints. I plan to order another set of sofa and loveseat covers.
Chelsea, US
★★★★★ 5
Pillows
I love the comfort and quality of the pillows.
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Reviewed in the United States on May 29, 2026

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