Derale Performance is changing the rules of engine temperature control with SmartTechnology brought to your car's cooling system through Derale's Patented PWM Fan Controller.

Historically, cooling fans run at 100%, even when less airflow is needed, constantly turning on and off as the engine temperature changes. This REACTION based temperature control system causes constantamperage spikes, excessive noise and premature wear. The Derale PWM fan controller continuously monitors your engine's temperature, therefore CONTROLLING the temperature and increasing thevehicles cooling efficiency, while reducing the amps used to do so.

Here's how it works; The controller monitorsyour engine temperature via the cool side of the radiator,therefore providing a more accurate reading for your cooling system. Using Soft Start Technology, fans ramp upslowly which eliminates harmful AMP spikes. The unit will continuously monitor yourengine's temperature and operate the fans at the optimum fan rate as needed between 1 to 100%. The net result; the electric fans often only run between 40-60% to keep your engine cool. Additional benefits include, reduced fan speeds which meansreduced fan noise, which tendsto compete with that sweet sound of your engine!

This multi-fan controller has a built-in A/C Over-ride circuit and is designed to control as many 12volt brushed electric fans as desired, up to 65 Amps combined. Even better, installation and calibration is a snap. It simply wires in-between your vehicles battery and electric fans; adding in a simple multi-meterand a twist of the temp adjuster, allows you to program the temperature to maximize your car’s coolingsystem.

Specifications

• Amp Rating: 65 amp
• Width: 3 1/2"
• Length: 4-7/16"
• Height: 1 3/4"

Features

• Pulse Width Modulation controls fan(s) speed from 0-100%
• Constantly adjusts fans speed to maintainthe desired temperature
• Controls multiple electric fans up to 65 amp capacity
• Finned, aluminum housing
• Includes automatic resetting circuit breaker
• Air Conditioning overide circuit built-in