Electric Fan Controller Kit 0444 is designed to activate fans by sensing air temperature as it passes through the radiator, with the sensor placed directly in the radiator fins, eliminating the need to cut hoses. The unit features an adjustable temperature range of 104 to 230 degrees Fahrenheit (40 to 110 degrees Celsius) and can display readings in either Celsius or Fahrenheit. Temperature settings are adjusted using the set button. The controller can operate one or two fans, with the second fan starting 10 seconds after the first. It functions based on thermal activation and can also be activated when the air conditioning system is running. Maximum voltage: 15V Maximum current: 50A Relay configuration: Dual relay Fan speed: Single speed with 10-second delay for second fan startup Compatibility: Suitable for single and dual fan setups Temperature display: LED digital display showing both actual and set temperatures Temperature units: Selectable between Celsius and Fahrenheit Control interface: Push button for temperature setting Circuit type: Pre-programmed mini controller Output wiring: Batt +, Batt -, AC Clutch, Fan #1, Fan #2, Thermistor Probe Dimensions: 3.75 x 2.6 x 2.2 inches (95 x 65 x 56 mm) The A/C input wire can be used as a manual override by applying 12 volts from an external switch. Color: Black Material: Plastic Package includes: 1 x Digital Fan Controller set Note: Other items shown in images are not included. Note: Lighting and display differences may cause slight color variations between the product image and the actual item. Measurement tolerances may vary by +/- 1-3 cm.