[Digital Thermal Fan Switch for 0444]Fan switch kit can be used in 12 or 24 volt applications (if you intend to operate 24v fans you need to purchase standard 24v relays.) [Temperature Range]The electric fan controller kit adjustable temperature range is 104F to 230F (40C to 110C), and can display Celsius or Fahrenheit degrees. The temperature is set by pressing the set button. (LED digital temp display, actual temp + set temp.) [Work Speed]The adjustable fan controller set can operate 1 or 2 fans. The second fan (if applicable) start after 10 seconds of fan 1 work. It operates in a hot manner, and also when the air conditioning is running. Circuit type: Pre-programmed Micro-controller. [Stable Performance]Digital radiator fan switch kit is made of standard material, wear and . Professional manufacturing, high qualit, and long service life. for single and dual fan applications. Note: Installation guide not included, we strongly recommend you professional installation. Please check as much as possible to make sure the item is what you need. Color: As Shown Material: plastic Package Contents: 1 * Digital Thermatic Fan Switch Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.