This isn't something I know anything about, but I know that 1-Wire exists and so on so am able to locate something like https://www.analog.com/en/products/max30

This isn't something I know anything about, but I know that 1-Wire exists and so on so am able to locate something like https://www.analog.com/en/products/max30207.html https://www.analog.com/en/products/max30207.html pretty easily. $2 in quantity, reports a temperature digitally, accurate to 0.3 C between 0 and 70 C. What is it about that device (or similar) that would put it out of scope?