Polar OH1 Optical Heart Rate (OHR) Sensor and Arm Strap Orange (M-XXL) Ships within United States Buy Online or Buy Online & Pick Up In-Store Share Loading Facebook Like button... Polar OH1 Optical Heart Rate (OHR) Sensor and Arm Strap Orange (M-XXL) Ships within United States Buy Online or Buy Online & Pick Up In-Store Share Loading Facebook Like button...