I haven't really been keeping track. I had a lot of the stuff on hand. The PID controller was about $43, the thermocouple was $12 and the SSR $7. I pretty much had the rest of it. So I guess a basic system would run about $80 or so. Designing and building it is half the fun. Being able to customize it any way I want is a plus too.
El Cheapo Royal Oak charcoal grill (heavily modified and repaired), Chargriller Pro, Webber 22.5" Silver, Webber Smokey Joe, Hibachi, UDS, ECB Square
My name is Monty, dad, or grandpa...depending on who you are.