I was at a show a couple weeks ago and was at the Testo table and they had 3 different instruments measuring temp and humidity and all 3 were different. The three I think were the 610, 605 and the 410. I still like my Fluke 52 with the stainless K type thermocouple with a wet sock. 15 years old and still works fine.
"War is cruelty,and you cannot refine it." Sherman to the leadership of Atlanta prior to burning the city.
"Common sense is the collection of prejudices acquired by age eighteen."
"Another means of silently lessening the inequality of property is to exempt all from taxation below a certain point, and to tax the higher portions of property in geometrical progression as they rise." --Thomas Jefferson to J. Madison, 1785.