Per the Dynon catalog, P/N 100409-000 is described as: Oil Temperature, 1/8-27 NPT , Continental 0-200
and
P/N 100409-001 is described as: Oil Temperature, 5/8-18 UNF, Lycoming/Superior/Continental
The Sensor Definition File has the part numbers switched.
id=1/8"-27 NPT FLUID TEMP (100409-001)...