Brand: Davies Craig Manufacturer's Part Number: DC-0444 Part Type: Fan Switches Product Line: Davies Craig Digital Thermatic Fan Switch Kits Summit Racing Part Number: DCW-DC-0444 UPC: 9311669004447 Thermal Switch Style: Fan control kit Sending Unit Style: Radiator probe Sending Unit Included: Yes Fan Quantity: Single/Dual Adjustment Range (degrees F): 104-230 degrees F Relay Included: Yes Wiring Harness Included: Yes Manual Override Switch Included: No Air Conditioning Relay Included: Yes Quantity: Sold as a kit. Notes: Compatible with 12V and 24V systems. Davies Craig Digital Thermatic Fan Switch Kits Davies Craig digital thermatic fan switch kits sense air temperature as it passes through the radiator with the sensor placed in the fin section. The sensor can also now be placed directly into the coolant system―in combination with a temperature sensor adapter kit. These fan switch assemblies are compatible with 12 or 24 V applications， and feature an adjustable range of 40 to 110 C， or 104 to 230 degrees F. Temperature is set by pressing the set button， and the units can run one or two fans. The second fan (if applicable) will start 10 seconds after the first fan begins cooling. Davies Craig switch kits operate thermally and also when the air conditioning being used.