Mabis Blue Heart Rate Monitor Ring. Continuous heart rate display (30-250 beats per minute). Stopwatch and clock. Expandable strap fits most sizes. 30 day limited warranty. Includes: Case, lanyard wIt'safety lock, extra battery, and instructions in English and Spanish. 1-1/8" x 1-1/8" (face); Finger pad ensures one size fits all (band).
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