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Heart-Rate Monitors

Sigma Sport Chest strap, Bluetooth
$87.99
This adjustable Sigma chest strap is compatible with Bluetooth-equipped heart rate monitoring devices.
Sigma Sport Chest strap, STS / Rox
$21.99
This adjustable chest strap is compatible with Sigma's STS and Rox wireless computers.
Sigma Sport Elastic Band For STS - Square Ends
$64.99
Replacement elastic band for Sigma STS heart-rate transmitter straps.
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