Ask at your LBS or someone who has one and rides in your area. It is impossible to answer defitely otherwise. Even in the best of areas there will be some interference from power transformers, signal light controllers, and other elctricals creating strong ElectroMagnetic field, and these will interfere with precision or downright disable the data sent from the transmitters. You can get wired computer to help that function, but I don't know of any wired HRM. Also the wired computers don't have many of the functions of the models you listed.