Infrared temperature sensors are integrated. Sensors, optical systems and electronic circuit cluster in the stainless shells; it is easy for installation, the standard screw on the stainless steel shells can be quickly connected with the parts installed. In addition, it also has different models of selected parts (e.g. blow protective housings, 90-degree adjustable installation supports, 3-dimension adjustable installation supports, special purpose digital control instruments, etc) to meet different requirements.