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SKU: 800-811
Derale dual electric fan controller.
HOW IT WORKS The Derale High Amperage Adjustable Dual Fan Controller is designed to operate two electric fans at different activating temperatures. Fan #1 is designed to activate at the desired adjusted temperature (150°F-240°F). Fan #2 will activate once the vehicle water temperature increases by 15°F. The fans will deactivate 10°F below each turn-on temperature.
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