Glad I saw this post
I have a tc-1 for the 4 header sensors

and i use the pectel monitor for the one after the turbo.
after reading this post i found out the tc-1 has a programmable alarm so I am now gonna wire that up and set it to 900degreesC for top speed runs

a question
why does a mar-m shaft allow higher temps to be run? surely if it was in danger of melting the blades would melt first?
I thought it was maybe because of the shocks involved in ALS?