I will caution though should you have a convection oven. The fan being constantly turned on and off by the PID unit will result in a burnout eventually. Since my fan was a 12V fan that was hooked up from the factory through a circuit board I simply snipped those wires and took the cord from an old 12V cell phone charger and direct wired the fan. Yeah I have two wires that I have to plug in and now have to remember to unplug but the fan will not burn out.