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  CONTEC Fingertip Pulse Oximeter

  $31.99 Select options This product has multiple variants. The options may be chosen on the product page
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  HR40 Dual Frequency Heart Rate Monitor Belt

  $49.99 Select options This product has multiple variants. The options may be chosen on the product page
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  Smart Wearable Ring for Samsung

  $127.99 Select options This product has multiple variants. The options may be chosen on the product page