Anyone have ideas as to the manufacturer of this oil temp sender?

Says "MADE IN SPAIN" and "7731" and "7-03" on it. Can't find anything with a part number of 7731. I'm assuming 7-03 is a date code but I could be wrong.

Logo seems to be something like ASI in a diamond shape.

This is from an old Radical SR4.

Trying to get an AIM MXL2 setup in it...

 

I can't ID that one, but new temp sensors for AiM are $45, so it's not usually worth the time and effort to ID old sensors and wire them. I just replace them.

 

Looks like VDO to me.