Profile: Stethoscopes Plus. Inc., distributes stethoscopes, BP monitors, otoscopes/ophthalmoscopes, accessories and parts. We offer Magna Fortis, 3M Littman, Tycos and ADC stethoscopes. The 3M-Littmann master cardiology stethoscope has a chestpiece that allows monitoring of both high and low frequencies without having to turn over the chestpiece. It has features such as hand-crafted, solid stainless steel chestpiece, two-tubes-in-one design, and lightweight comfort headset. The Tycos classic hand aneroid sphygmomanometer provides a jewelled movement that gives consistent accuracy reading while ensuring long-term calibration. A strong zinc die-cast housing protects the precision movement. It is available with adult cuff.