“LAND” Stream reformer tube wall temperature measurement. Online measurement Model : NIR-B-640-EX NIR-Borescope-640-EX à»ç¹¡Åéͧ¶èÒÂÀÒ¾ÍÔ¹¿ÃÒàô Êèͧ·Ò§ä¡Å ẺàôÔâÍàÁµÃÔ¡¤ÇÒÁÂÒǤÅ×è¹ÊÑé¹ ATEX and IECEx approved to Ex nA IIC T4 Gc for use in Zone 2 gas atmospheres, and CSA Certified for US and Canada to Class I, Division 2, Groups A, B, C, D T4, the NIR-B-640-EX provides a high resolution thermal image with real time continuous high accuracy temperature measurements of both the tube wall and