Stethoscope Tips

How to Find Your Stethoscope's Serial Number

To find your MDF Instruments® stethoscope serial number look for seven characters printed on the stethoscope chess piece. This should be a letter followed by a six digit number. Some models may vary with two letters and 6 or 7 numbers. 

Still Can't find it?
On the MDF797T and some MDF797 Stainless steel models have a hidden serial number. The serial number is not the 490-002 number on the diaphragm where the MDF logo is.  Please unscrew the other side which is the bell piece of the chest piece to see the serial number on the chest piece. Please note the serial number is not on the detachable attachment pieces. 
For the 797X unscrew the chest piece to find the serial number. For the 767X you can find the serial number in the side of the  middle barrel.

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With you for LIFE!

With you for LIFE!

MDF Instruments® is committed to not only providing the best sound quality stethoscope for medical professionals and the best personalized designs, but we are here for you when your beloved sunflower stethoscope deteriorates on you! All of our stethoscopes have a Lifetime Warranty which covers stethoscope parts such as stiff and hardened tubing, missing ear tip holders, chest piece parts and other issues you may run into while using your MDF®.

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How to Remove the Non-Chill Ring from the Chestpiece of a MDF® Instruments Stethoscope

How to Remove the Non-Chill Ring from the Chestpiece of a MDF® Instruments Stethoscope

It's a great idea to change out your stethoscope parts every once in a while to keep them fresh and hygienic.

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How to install a Non-Chill Ring from the Chestpiece of a MDF® Instruments Stethoscope

How to install a Non-Chill Ring from the Chestpiece of a MDF® Instruments Stethoscope

Has your non chill ring become dirty or cracked? All the free stethoscope parts you need are offered under our Free-Parts-For-Life program! Your non-chill ring is a protector for the low frequency side of your stethoscope. When examining patients, having a cold touch from the chest piece is prevented with the non-chill ring.

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