Our Stethoscopes (excluding the single-use line), Sphygmomanometers and Reflex Hammers have a 30-year Warranty. See details below.

MDF® stethoscopes with defects in material or craftsmanship will be replaced or repaired without charge for the 30 year life of the instrument (excluding the Singularis® line). This warranty includes tubing. The 30 year warranty™ does not cover normal wear and tear, misuse or issues related to the appearance of the instrument, such as pen mark, and dye transfer from uniforms or bags. The arranty™30 year warranty also does not cover damage to the instrument from alterations or additives, such as harsh chemical cleaners.

Due to limited quantities of each print, limited-edition (printed and glitter) stethoscope tubing may not be replaced with the same design or color. Mprint™ Collection Stethoscope warranty requests will be fulfilled at the discretion of MDF® Instruments.

The use of non-authorized third-party modification services is done at your own discretion and will void the MDF® 30 year Warranty™. MDF® Instruments does not guarantee that the third party modifications will meet our requirements, be effective, accurate, or reliable.

The 30-Year Warranty covers the entire stethoscope including the tubing, against defects in material and craftsmanship. Your stethoscope will be repaired or replaced without charge for the life of the instrument in case of defect. However, the 30-Year Warranty does not cover discolored tubing (not related to manufacturing defect), theft, loss, disposal, improper handling, accidents or failure to follow operating instructions.

MDF® offers a Lifetime Warranty on aneroid sphygmomanometers and replacement cuffs with defects in material or craftsmanship, to be replaced or repaired without charge. We also offer a lifetime calibration warranty on MDF® Aneroid sphygmomanometers. The calibration warranty does not apply to damage caused by improper handling, accidents, failure to follow operating instructions, or alterations made to the device by third parties. Electronic blood pressure units are covered by a two-year warranty against defects in material or craftsmanship, and a two-year calibration warranty. Calibration warranties do not apply to damage caused by improper handling, accidents, failure to follow operating instructions, or alterations made to the device by third parties.

MDF® reflex hammers with defects in material or craftsmanship will be replaced or repaired without charge for the life of the instrument.

MDF penlights are warranted to be free from defects in material or craftsmanship. Penlights with defects in material or craftsmanship will be replaced or repaired without charge as long as the defect is reported within one year of the original purchase. The MDF® 621 LUMiNiX is warranted to be free from defects in material or craftsmanship. LUMiNiXes with defects in material or craftsmanship will be replaced or repaired without charge as long as the defect is reported within two years of the original purchase.

All MDF Instruments thermometers, including the Febris, are qualified for a two-year manufacturer's warranty.

MDF® product warranties are non-transferrable.

Free-Parts-For-Life and 30-Year Warranty shipments will be sent to the shipping address on the original order or location of purchase. If shipping country is different than the distribution center of the product, the replacement shipment will be sent within the country of the distribution center. MDF Instruments will not be responsible to replace any item that was received using a third party shipping company to import into a country that does not have a distribution center containing that item. MDF Instruments will not be responsible for shipping costs to replace any item in another location or country other than the original location. MDF Instruments will not be responsible for any cost of shipping or import fees that exceeds the cost of the item.

If you have moved to another address or country other than the original shipping location, we will do our best to send Free-Parts-For-Life and Lifetime Warranty shipments from a designated distribution center or distributor. We have distribution centers in the USA, European Union, Mexico, China and Japan. We have official MDF Instruments distributors in over 80 countries.