2-Pt. Acoustical Calibrator - Class 2

Marsoni

M251S

$187.00

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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These were way smaller than I imagined based on the photos. Those were obviously ai generated photos that don’t even look like the product at times. They are pretty flimsy and I wouldn’t buy again. My dog will tear this apart in 2 min. But it’s a good size to throw around I guess or maybe for a much smaller dog that doesn’t also want to chew. 3 stars because we will get some play out of them and there’s 2. Just know what you are getting

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Reviewed in the United States on October 16, 2025

Waukegan, US

★★★★★ 5

Very cute! My dog loves it!

You cannot beat the price of this donut dog toy and it includes two of them! I opened these up and my dog wanted to play with it right away. They are smallish, probably about the size of a regular donut. It might look a little small compared to my dog but he is 125lbs. These little donuts even have squeakers in them. Is your dog going to be able to rip these apart… yes. I never expected him to not be able to rip these up. My dog first likes to give it nib nibs and then he will eventually rip it up. You will not find a better dog toy for the price that these are selling for on Amazon. Plus it is adorable seeing your dog walking around with a donut in his mouth!

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Reviewed in the United States on October 12, 2025