Garmin FR70 Heart Rate Monitor
The Garmin FR70 Heart Rate Monitor packs a lot of training power into a compact and affordable package. The FR70 is expandable and can grow with your training needs by adding optional ANT+ training sensors such as a foot pod (for running) or speed and cadence sensor (for cycling). The included ANT+ heart rate transmitter features coded digital transmission for interference-free performance. The FR70 is built to stand the daily rigors of training and will give years of trouble-free performance!
Please see this link for its replacement.