We're currently talking about a blind Spider-Man going up against DD with only his Spider-Sense. Daredevil's radar sense has been depicted as being way more resourceful over the years allowing DD to see major shapes of objects like buildings, ect.
This issue was actually covered a long, long time ago in Peter Parker the Spectacular Spider-Man #25-28. A villain called the Masked Marauder temporarily blinded Spidey and he was practically worthless. DD had to teach him how to use his other senses to survive.