I'm looking at getting a cyclometer (upgrade to get cadence and HR) or HRM, but I'm having trouble finding or determining if the models record time spent in each zone on a given ride. Friel's example daily log in his book shows recording minutes spent in each zone, but so far the cyclometers I've looked at (Cateye v3 and Polar cs200cad) seem to only record time for a single zone.
Anyone using one that records time spent in each zone? Preferably 4-5 zones. If it can be done on the meter without uploading to computer that would be best, really don't want to spend the time doing that, plus I'm running Linux (Ubuntu) and not Windows.