所有302系列的探測器都是常開的系統，有135華氏度（57攝氏度）和194華氏度（90攝氏度）兩種定溫度等級。 進口302-EPM-194

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 （氧化鋁）sensing shell and fine silver contacts which are hermetically sealed to ensure reliable operation. Electrical Rating （額定電功率）6-28 VDC, 1 amp. (all models) 大發機電供感溫棒

302-135- Interior, Vertical Mounting Fixed Temperature 135°F Maximum Spacing - UL 50' x 50'

302-194 - Interior, Vertical Mounting Fixed Temperature 194°F Maximum Spacing - UL 50' x 50'

這款應該是室內使用    

302-ET-135 - All Weather, Vertical Mounting Fixed Temperature 135°F Maximum Spacing - UL 50' x 50'

302-All Weather, Vertical Mounting Fixed Temperature 194°F Maximum Spacing - UL 50' x 50'

這款是所有的環境使用

302-AW-135 - Moisture and Dust Proof, Vertical Mounting Fixed Temperature 135°F Maximum Spacing - UL 50' x 50'

302-AW-194 - Moisture and Dust Proof, Vertical Mounting Fixed Temperature 194°F Maximum Spacing - UL 50' x 50'

這款是防潮和防塵

302-EPM-135 - Explosion Proof Screw base, Vertical Mounting Fixed Temperature 135°F Maximum Spacing - UL 40' x 40'

302-EPM-194Explosion Proof Screw base, Vertical Mounting Fixed Temperature 194°F Maximum Spacing - UL 40' x 40'

公司是一家專業銷售消防配件、電線電纜，五金機電，軌道交通配件,電工電氣為主的技術類民營企業，公司自創立以來一直致力于開拓消防備件，五金機電設備，電纜，照明工程西南市場。始終堅持"誠信、創新、溝通"為企業宗旨，以"技術、服務"為立業之本的團體精神，并形成一套完整的售前、售中、售后、維護一站式服務體系。為新老客戶創造高效低成本的解決方案。

進口感溫棒