302-epm-135开关量感温棒所有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。进口302-EPM-194进口302-EPM-135感温棒All302SeriesDetectorsarenormallyopendevicesandare***ailableineither135°F(57°C)or194°F(90°C)ratings.Eachunitisc***tructedwithahighexpansion.040anodizedaluminum（氧化铝）sensingshellandfinesilvercontactswhicharehermeticallyseaLEDtoensurereliableoperation.ElectricalRating（额定电功率）6-28VDC,1amp.(allmodels)大发机电供感温棒302-135-Interior,VerticalMountingFixedTemperature135°FMaximumSpacing-UL50'x50'302-194-Interior,VerticalMountingFixedTemperature194°FMaximumSpacing-UL50'x50'这款应该是室内使用302-ET-135-AllWeather,VerticalMountingFixedTemperature135°FMaximumSpacing-UL50'x50'302-AllWeather,VerticalMountingFixedTemperature194°FMaximumSpacing-UL50'x50'这款是所有的环境使用302-AW-135-MoistureandDustProof,VerticalMountingFixedTemperature135°FMaximumSpacing-UL50'x50'302-AW-194-MoistureandDustProof,VerticalMountingFixedTemperature194°FMaximumSpacing-UL50'x50'这款是防潮和防尘)