Ahhhh, I never even thought about engine paint or going to a autoparts store.
Thanks Nord and Old
Raspberry PI Heatermeter homemade temp controller, 2 UDS.
New Version 4.2 Heatermeter with K thermocouple support Available
PM me, if you would like a heatermeter pre-made, everything included, heatermeter, case, blower, SD card programmed, servo and case, no soldering needed ready for your network and BBQ.