2-Pt. Acoustical Calibrator - Class 1

Marsoni

M251S

$431.75

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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Very sturdy and looks good. But, the part that holds the umbrella is loose and requires a wedge to stop it spinning (I used a plastic knife). Also the screw on the bottom RUSTS and in a BIG way. To solve the rust issue I put an old plastic cutting board under it. We use it with the modifications mentioned.

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Reviewed in the United States on May 7, 2026

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Curtis S Gezotis

New York, US

★★★★★ 5

Durable, easy to set up

Color: Black - Sunburst

Works great, easy set up!

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Reviewed in the United States on May 6, 2026

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J R Smith

Carnegie, US

★★★★★ 5

Assembly great!

Very good item. Good structure and easy to assemble

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Reviewed in the United States on May 22, 2026

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Leah N. Norton

Los Angeles, US

★★★★★ 5

Easy install!

Works great and easy to install.

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Reviewed in the United States on April 29, 2026

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DKindleReader

Lake Worth, US

★★★★★ 5

Nice umbrella stand

This stand is sturdy enough for my 9 ft umbrella. I only used water to fill it so it can be moved if necessary. The umbrella is taken down if it gets too windy as it would be damaged. This would not be the fault of the stand, just the nature of living near the coast.

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Reviewed in the United States on May 1, 2026