Casting with a PID Controller

[Martini2]

Your cautioning is correct. Probably should have included a disclaimer while offering PID and electrical info. Should have mentioned that my set up included separate thermocouples attached to the different units.
I had to go to industrial supply company and open an account to purchase the required type J thermocouple plugs and wiring. With past career in Glass industry, building and setting up furnaces and kilns it was no big thing. However you are most welcome to point out caution and it's noted to apply here. That said we also should note the info passed to this forum regarding use of technology (PID) was addressed to other forum members who may also use firearms and reloading equipment. So risk management an attention to details by said group should be intrinsic to the nature of all such activities and persons.