Hayden Digital Fan Controllers

Hayden digital fan controllers incorporate the same pulse-width technology used by OEM controllers that interface directly with the powertrain control module. They will vary fan speed based on your custom temperature setting--delivering cooling when you need it, not when you don't. With adjustable set points between 120 to 210 degrees F, the controllers have no contacts to wear out and no relays to replace, ever! Their auto-on feature with air conditioning engagement and auto-shutdown when the key is off ensure that you get the required breeze while extending fan life. Hermetically-sealed electronics and EMI suppression ensure a long, trouble-free operation. Hayden digital fan controllers include a temperature probe, wiring, and installation instructions. Show Less