Derale 16797 Cooling Fan Speed Control

Derale Performance is changing the rules of engine temperature control with Smart Technology brought to your car's cooling system through Derale's New Digital PWM Fan Controller. Historically, cooling fans run at 100 Percent, even when less airflow is needed, constantly turning on and off as the engine temperature changes. This REACTION-based temperature control system causes constant amperage spikes, excessive noise and premature wear. The Derale PWM fan controller continuously monitors your engine's temperature, therefore CONTROLLING the temperature and increasing the vehicles cooling efficiency, while reducing the amps used to do so. Here's how it works. The controller monitors your engine temperature via the side of the radiator, therefore providing a more accurate reading for your cooling system. Using Soft Start Technology, fans ramp up slowly which eliminates harmful AMP spikes. Our new control will keep your fan/s running for an additional 20 Seconds after you turn your vehicle off. The unit will continuously monitor your engine's temperature and operate the fans at the optimum fan rate as needed between 1 to 100 Percent. The net result the electric fans often only run between 40-60 Percent to keep your engine cool. Additional benefits features reduced fan speeds which means reduced fan noise, which tends to 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 12 Volt brushed electric fans as desired, up to 70 Ampere combined. Even better, installation and calibration is a snap. It simply wires in-between your vehicle's battery and electric fans.

• Pulse Width Modulation Controls Fan Speed From 0 To 100 Percent
• Soft Start Technology
• Constantly Adjusts Fans Speed To Maintain The Desired Temperature
• Built-In Protections: Short Circuit, Over Amperage, Low Voltage, High Voltage, Reverse Polarity, Over Temperature And Anti Flyback
• Controls Multiple Electric Fans Up To 70 Ampere Capacity
• 20 Second Cooldown Timer When The Vehicle Is Turned Off
• Black Finned, 6061 Aluminum Housing
• Features Automatic Resetting Circuit Breaker
• Air Conditioning Override Circuit Built-In
• Limited 1 Year Warranty