Garmin Forerunner 305 + Heart Rate Monitor + Bicycle Cadence Sensor
Among the finest fitness monitors on the market. It got 4.5 stars from 2,452 reviewers on Amazon.com: /Garmin-Forerunner-Receiver-Discontinued-Manufacturer/dp/B000CSWCQA/ref=sr_1_1?s=electronics&ie=UTF8&qid=38&sr=1-1&keywords=Garmin+Forerunner+305
Includes not just the monitor however also a Heart Rate band and a Bicycle Cadence Sensor to track your bicycle's cadence - a more exact measurement than speed or distance (if your function is to measure calories expanded).
Fantastic value for all three. Rate never negotiable. This is a very high discount rate from exactly what all 3 products are worth.