所有302系列的探测器都是常开的系统，有135华氏度（57摄氏度）和194华氏度（90摄氏度）两种定温度等级。

All 302 Series Detectors are normally open devices and are available in either 135°F (57°C) or 194°F (90°C) ratings. Each unit is constructed with a high expansion .040 anodized aluminum （氧化铝）sensing shell and fine silver contacts which are hermetically sealed to ensure reliable operation. Electrical Rating （额定电功率）6-28 VDC, 1 amp. (all models)

 成都大发机电长期供应 诺帝菲尔诺帝菲尔302-EPM-194防爆防淋感温探测器

美国NOTIFIER诺帝菲尔感温传感器302-EPM-194

2、模拟量感温电缆K82017、K82021、K82078、感温电缆微机头K82194等等