Features: Uses it for furnace-oven, incubator temperature control. Uses it in heating control as well as for cooling control. Output, alarm and self-tuning can be indicated by : LED Auto tune-function can find the best PID parameter automatically. It is used in various industries-to control and monitors process temperatures. Specifications: Material:Plastic Panel Size: 48x48x110mm/1.88x1.88x4.33inch Opening Size: 45x45mm/1.77x1.77inch Color:Black Style: K-type input-relay outputs-MDA Style: K-type input solid-state output-VDA Style: universal input-relay output MAN Style: universal input solid-state output-VAN Package Includes: 1x Temperature Controller note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.