Electric Fan Controller Kit 0444 is designed to activate fans by sensing air temperature as it passes through the radiator, with the sensor installed 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 temperature in either Celsius or Fahrenheit. Temperature is set using the push button control. The controller can operate one or two fans. If two fans are used, the second fan starts 10 seconds after the first. It can be activated based on temperature and can also be triggered when the air conditioning system is running. Maximum voltage: 15V Maximum current: 50A Relay configuration: Dual relay Speed: Single speed with 10-second delay for second fan startup Compatible with single and dual fan setups Temperature display: LED digital display showing actual and set temperature Temperature units: Selectable between Celsius and Fahrenheit Control type: Pre-programmed mini controller Output wires: 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 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 not included. Color may vary slightly due to lighting and display differences. Measurement may vary by +/- 1-3 cm.