GARMIN heart rate monitor. Can be linked to a cycle computer. Since there is no belt, I cannot confirm its operation, so please consider it as a junk item. We do not accept returns or cancellations even if it does not work, so please understand that this is a junk item before considering purchasing. How about using it for parts? NCNR (No Claims, No Returns) - Brand: GARMIN - Color: Black - Type: Heart Rate Monitor Thank you for viewing.