SH2000-PT can be used in the condition of extremely high temperature inside furnace. It is possible to be installed and operated manually to observe the ignition condition and upper part of wall. Because sensor is installed at the end of lens tube, warning function of BUZZER sound is performed when internal temperature of furnace exceeds beyond the limit. SHP2000 is designed for air hose and cables to be easily detachable, and air cooling systems and image storage devices can be connected, light weight and easily portable.