Side by Side Comparison of: Primacare vs American Diagnostic vs 3M Littmann

2 AAA Batteries Included

Activated by depressing pocket clip

High quality

Imprinted pupil gauge

Combination chestpiece is precisely machined to exacting tolerances from lightweight aluminum. Highly sensitive, non-chill diaphragm for greater amplification and crisper high-frequency transmission; extra-large, non-chill bell for low-frequency response.

Clinician headset features reinforcing yoke molded into flexible 22-inch PVC tubing, lightweight aluminum binaurals in matching satin finish, and Adsoft Plus silicone eartips for the ultimate in wearing comfort and acoustic seal.

Weighs just 3.5 oz (100 g).

Includes spare diaphragm and one additional pair of Adsoft Plus eartips

Five-year warranty and free "consumables," including diaphragms and eartips, when registered.

Two-sided chest piece with tunable diaphragms on both the adult and pediatric sides^Single-piece tunable diaphragm is easy to attach, and easier to clean because its surface is smooth without crevices^Pediatric side converts to a traditional open bell by replacing the single-piece diaphragm with a non-chill rim^Next-generation tubing provides longer life due to improved resistance to skin oils and alcohol; less likely to pick up stains^Small tunable diaphragm is useful for pediatric, small, or thin patients; around bandages; and for carotid assessment

Provides reliable acoustic performance for taking blood pressure readings and making limited physical assessments of adult patients.

Tunable diaphragm responds with a simple pressure change to capture low and high-frequency sounds

Tear-drop shape for easy fit under blood pressure cuff , Chestpiece Size : 2.12 Inch

Anatomically designed headset is angled to meet the path of the ear canal

Nonchill rim and diaphragm provide welcome patient comfort