h3y guys im a biggn3r! n33d sugg3stins from you people..suppose we r given a task we3 n33d to s3l3ct s3nsor d3fin3t3ly w3 vl go through its characteristics but how? for example iam given a tsk that there a is a boiler temperature control..the temp: should be controlled at 800 degree centigrate.I know we will need a temp: sensor among those what should i choose & how? plus how can I defend my design? thanks