Latex free. More accurate blood pressure readings & lower lifetime ownership cost due to award-winning design that is gear-free & shock-resistant. Welch Allyn's line of aneroid sphygmomanometers featuring gear-free, shock-resistant DuraShock technology offer practical benefits compared to traditional sphygmomanometers w/gears. This is especailly true in busy medical environments where instruments may be handled roughly or dropped. With DuraShock technology, Welch Allyn sphygmomanometers will remain in calibration longer, providing more accurate readings than traditional sphygmomanometers w/gears. They won't need to be replaced as often as traditional guauges w/gears, providing lower lifetime ownership cost.<br><br>Only Welch Allyn aneroids feature gear-free, shock resistant DuraShock technology to deliver unprecedented durability. The only guage capable of passing AAMI Shock Resistant standard ensures your sphygmomanometer will remain accurately calibrated longer. Lower lifetime cost of ownership since DuraShock guages don't need replacing as often due to drops & rough handling. Only Welch Allyn offers a jeweled movement w/an industrial sapphire at the key friction point for long product life. Only Welch Allyn calibrates by computer & laser engraves a unique, custom-matched dial face for unprecedented accracy over the instrument life. Lighter weight than traditional sphygmomanometers so it won't weigh down your lab coat. 1-piece cuff design is more durable than traditional cuff & bladder systems & it eliminates the need to remove or replace bladders. Latex-free cuff is easy to clean, disinfect, or sterilize for safety. 15-year calibration warranty for overall value.