I have read thru a couple of threads related to the replacement of the speed sensor using an Allegro A1203 AU hall effect switch. I have access to a Melexis US1881 AU switch, which is also advertised by Digi-Key as a bi-polar switch part # US1881LUA and wonder whether it will also be suitable for the task. My other concern is that on the melexis.com web site this item seems to be uni-polar or maybe I don't really understand the diffs.
