SPF. Eurotherm 2216 professional temp controller , heat sink and k/j type thermocouples included, perfect for PID controller , these are used in power plants to control temperature. Built my pid controller with this same until. All you need is a solid state really 25 amp which are cheap on eBay. Much better then the Chinese controllers you see on eBay . This is professional grade.
$100 shipped
Attachment 278710