I have an old ElectriCalc Plus which is probably the fore runner of the Pro model. It was given to me by one of the contractors I deal with.
I use it mostly for voltage drop calculations where I can do many what if ? scenarios in a very short time.
One drawback of my model is if you are figuring several size conductors in a raceway, the calculation is based on all conductors being the same size as the largest.
It is handy, but to this day, I'm not sure that I would be willing to buy one. Everything the calculator does, so does a spreadsheet in my computer. If you do a lot of calculations in the field, then this would definitely be a must have tool.
Tom
