doug293cz's 1 PID controller, with interlock. Has only 1 pump switch. Will sell just the box and heat sink and power cord connector and mounting plate $105. Or will sell all wired up as in pictures for the price of the parts $ 436.00 without cord, add $50.00 for the gfci cord. Going to build a 2 pid controller so will use the parts for that one, so it doesn't matter to me. Just used it for 3 brews. Not a professionally wired but it works great.