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ADC - AD500512Q 500512Q 512 Hz Medical-Grade Tuning Fork Instrument, Non-Magnetic Aluminum Alloy

4.6 4.6 out of 5 stars 1,045 ratings
Price: $15.68 Get Fast, Free Shipping with Amazon Prime FREE Returns
512 Hz
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Purchase options and add-ons

  • Non-magnetic corrosion resistant aluminum alloy construction
  • Lightweight, about 1/3 of the comparable steel tuning forks
  • Produced from 3/8 inch x 1 inch bar for superior performance and consistant frequency accuracy
  • Extra long handle of turned smooth aluminum to facilitate bone conduction tests
  • Inspected in the USA

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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Language ‏ : ‎ English
  • Product Dimensions ‏ : ‎ 6.5 x 1.5 x 0.75 inches; 1.27 ounces
  • Item model number ‏ : ‎ 500512Q
  • Date First Available ‏ : ‎ December 1, 2010
  • Manufacturer ‏ : ‎ American Diagnostic Corporation
  • ASIN ‏ : ‎ B004ETNANM
  • Country of Origin ‏ : ‎ USA
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • Customer Reviews:
    4.6 4.6 out of 5 stars 1,045 ratings

Product Description

The ADC tuning forks are made from aluminum alloy. They are designed and manufactured to meet the demanding needs of any medical professional.

Important information

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PC ALUMINUM CLINICAL GRADE NERVE/SENSORY TUNING FORK, 512 CPS

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From the manufacturer

Neurological Instruments from ADC

Our line of instruments includes a wide selection of reflex hammers and popular frequencies of tuning forks. Our tuning forks are machined from high-grade aluminum alloy and offer accurate frequency response from 128 to 512 Hz.

Features of an Authentic ADC Tuning Fork

Material

Authentic ADC tuning forks are machined in the USA from non-magnetic, corrosion-resistant aluminum alloy in 3/8” x 1” solid bar stock. Finished instruments do not bend, break, or deteriorate under normal use. The overall finish is a smooth satin aluminum, with a more polished look on the handle.

Construction

Authentic ADC tuning forks are medical grade and accurate to .5% or their rated frequency response. Weights, which can be found on 128 Hz and 256 Hz instruments, are equally sized on each fork and are mounted securely about a quarter of an inch below the fork tips. If there are visible gaps between the forks and the weights, it is not a genuine ADC product. In addition, the bottom of the fork handle is slightly beveled, with a small indent at the center.

Branding

Authentic ADC tuning forks are marked on both sides of the instrument. One side is stamped with the instrument frequency (128C, 256C, or 512C). The other side is stamped 'ADC.' If you receive an instrument that’s missing either of these marks, it is not a genuine ADC product.

ADC 128 Hz Tuning Fork with Fixed Weights ADC 256 Hz Tuning Fork with Fixed Weights ADC 512 Hz Tuning Fork
See Details
Customer Reviews
4.6 out of 5 stars
1,045
4.6 out of 5 stars
1,045
4.6 out of 5 stars
1,045
Price — $19.38 $15.68
Frequency 128 cycles per second 256 cycles per second 512 cycles per second
Material Non-magnetic aluminum alloy Non-magnetic aluminum alloy Non-magnetic aluminum alloy
Instrument Weight 4 oz. 3 oz. 2 oz.
Fixed Weights Yes Yes No
Packaging Polybag Retail blister pack Retail blister pack
Made in the USA Yes Yes Yes

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Customer reviews

4.6 out of 5 stars
4.6 out of 5
1,045 global ratings
Item shipped from Precise Canada is a forgery -- do not buy from this seller
5 Stars
Item shipped from Precise Canada is a forgery -- do not buy from this seller
The ADC 500256 Aluminum Alloy Tuning Fork is an excellent product. However, the item shipped to me from Precise Canada is a forgery, not a genuine ADC instrument. Photos attached.
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Top reviews from the United States

Jennifer Tucher
5.0 out of 5 stars Good tuning fork
Reviewed in the United States on March 23, 2024
Size: 128 HzVerified Purchase
As described - good product and good price. Does not feel or look cheap like some of the other items that come in a 3 pack with other options. Would buy again.
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klknln.
5.0 out of 5 stars Great tuning fork!
Reviewed in the United States on December 15, 2023
Size: 128 HzVerified Purchase
Neurologist approved! Was debating between this and a cheaper one, glad I went with this one. Good construction and gets the job done.
2 people found this helpful
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Kindle Customer
5.0 out of 5 stars Works As Expected
Reviewed in the United States on April 9, 2023
Size: 128 HzVerified Purchase
Item as stated in ad. Shipped quick. Well packed. Do not know if it is a perfect "C" but it does what I need. Would recommend to a colleague.
One person found this helpful
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songandmoon
5.0 out of 5 stars Hefty weight with stronger sound
Reviewed in the United States on December 5, 2021
Size: 512 HzVerified Purchase
It's hard to find a good tuning fork online, so I was happy to find this one that had good reviews, and am pleased with the quality. It feels heavier than another tuning fork I bought, and I could be wrong but I think the sound transmission is louder than the previous tuning fork. The 512hz is also accurate. Overall happy.
2 people found this helpful
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Sergio Escamilla
4.0 out of 5 stars Good, but not perfect
Reviewed in the United States on July 19, 2018
Size: 512 HzVerified Purchase
Sturdy construction, lightweight since it's entirely aluminum. My critique is that once you hit it on your knee to perform a Weber's or Rinne's test you can hear the aluminum's resonance along with the 512 Hertz puretone. I mitigate this by either rubber-banding the base where the fork splits to reduce the resonance of the aluminum (somewhat tacky), or hold the fork's split with my fingers until there's only the puretone. This is only a minor nuisance most likely due to the aluminum the fork is made from and not necessarily its craftsmanship.
Also, to successfully perform me Weber's or Rinne's test you must FIRMLY apply it to the respective parts of the skull which may cause discomfort to the patient in an attempt to successfully administer the test. I've seen more expensive tuning forks with some sort of Base that may be more comfortable for the client? This is only my first tuning fork so I do not know whether or not this is normal; overall I must say I am pleased with it's cost and its craftsmanship.
11 people found this helpful
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Jenny
5.0 out of 5 stars These work for hearing testing
Reviewed in the United States on January 31, 2023
Size: 512 HzVerified Purchase
They work well for hearing testing in the hospital/clinic (rinne or Weber). Good value.
3 people found this helpful
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Roberto V.
5.0 out of 5 stars ADC 256 Hz
Reviewed in the United States on August 6, 2021
Size: 256 HzVerified Purchase
bought it for being 256, one of the most commonly used in medical practice. works perfectly, Rinne and Weber acoustic tests; both air and bone are very accurate. First time I used it on myself, perfect both ears both air conduction and bone conduction. First patient actually had a clinical finding proving its worth and that it works precisely. Accurate
5 people found this helpful
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The Lazer Viking
5.0 out of 5 stars Good medical tuning fork
Reviewed in the United States on October 14, 2013
Size: 512 HzVerified Purchase
This is a good, medical-quality tuning fork. It is rather lightweight, but despite this it feels very strong. I can get the fork to vibrate just fine, but then again I sometimes have a heavy hand while other reviewers may find the force required to strike it a little much. I also have the 128 Hz fork from the same manufacturer and this fork doesn't hold its vibration quite as long, but then again this fork has a higher frequency of vibration so it seems to make sense. I can't comment on the longevity of this fork over the years, as I am not a doctor (yet), but so far it is getting me through medical school just fine.
One person found this helpful
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Top reviews from other countries

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KENIA
5.0 out of 5 stars Resistente
Reviewed in Mexico on April 12, 2023
Size: 512 HzVerified Purchase
Buen producto
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Erika Moreno
5.0 out of 5 stars Diapasón 128hz
Reviewed in Mexico on January 19, 2020
Size: 128 HzVerified Purchase
Excelente producto, justo como lo anuncian, muy buena calidad material y de vibración.
Customer image
Erika Moreno
5.0 out of 5 stars Diapasón 128hz
Reviewed in Mexico on January 19, 2020
Excelente producto, justo como lo anuncian, muy buena calidad material y de vibración.
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Amazon Customer
4.0 out of 5 stars Four Stars
Reviewed in Canada on February 10, 2017
Size: 256 HzVerified Purchase
again surprised when it turned up at my former work address directly from Pakistan.
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Amazon Customer
5.0 out of 5 stars Five Stars
Reviewed in Canada on April 24, 2016
Size: 128 HzVerified Purchase
Prompt delivery of a product commensurate with price.
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me
5.0 out of 5 stars Five Stars
Reviewed in Canada on August 28, 2015
Size: 256 CPSVerified Purchase
Works as needed.
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