I took a look at the Stromberg Carlson Electric Trailer Jack # SC63VR and the Bulldog Powered Drive Trailer Jack # BD500199 I believe I have found a comparable solution.
I know this is not exactly what you're looking for, however none of our A-frame jacks have an auto-stop function like you're looking for, but I did find the:
- Phoenix Electric Trailer Jack with Remote # UF38-944055.
This jack has a maximum weight capacity of 5,500lbs, 26" of travel, and will extend 6" with a 1,000lb... view full answer...