For water temp i got a 36mm (i think) adapter to go into the rad hose, you cut the top hose and put this adapter in it, (means a fluid change, but nothing too major!) see link for idea...
this is just for an example! as it is not the right size! but lets you know what you are looking for!!!
As for oil temp, i have one of these too, also have a sandwich plate, which fits inbetween the oil filter and the block, these normally have 4 sensor holes. I still havent fitted mine yet, when i get round to it i will let you know how it goes!)
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