Oh, and one final thing worth noting. There are two versions of the timer unit. One that can time down to .1 second accuracy and the other can go to 1 second accuracy.

If you purchase the one that goes to .1 second accuracy you will have a lot more wires and will use a secondary power input.

If you go with the one that goes to 1 second accuracy you can use a single power cord to power the timer unit and annealer at the same time. It's a much cleaner setup that way so that's the route I went.

In theory the .1 second accuracy is 'more accurate' but in my line of thinking it has too much adjustability to it, especially when the diameter of the coil itself makes such a huge impact on what is going on.

You can wire the 1 second model with an additional power supply OR just using the single extension cord for everything. With the more 'sensitive' model you will be using two power cords, two electric outlets etc. There is one option only.