I have used my heart rate monitor six times running on the track in the last two weeks. It's really easy to use, adjustable strap sensor and wrist watch. So far, no complaint whatsoever. Would buy one again. Highly recommending this product. No bells or whistles, but it gets the job done and it is reliable. Thank you, Amazon, for carrying this product and the fast shipping.Get more detail about Timex T5G971 Unisex Sports Personal Heart Rate Monitor Watch.
