I have the NAV 51. It seems more suited to HVAC for a little less. I have been happy with it.
Originally Posted by cavalieri85
"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.