please see screenshot:
What makes you think the temp sensor is in that area of the hash board? it's very unlikely, most hash boards come with more than 1 temp sensor (usually 4 of them), and they are located near the chips around the 4 corners to give an accurate reading across the whole board, and they are too small to be found, you need an answer from someone who personally has the same miner and has changed those temp sensors, which is not likely to happen, so I would just contact INNO support and request it from them.