[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 104 F to 230 F (40 C to 110 C), 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.