適用范圍 Application 1區、2區危險場所。 ⅡA、ⅡB類爆炸性氣體環境。 Can be used in Zone 1 and Zone 2 dangerous places. Can be used in IIA、IIB、group explosive atmosphere. 型號含義 Main implication 產品特點 Features 鑄鋁合金外殼,表面噴塑. 內裝LX19行程開關. 鋼管布線均可. 符合GB3836-2000,IEC60079標準要求. The shell is of diccasted AI-alloy with plastic-sprayed surface. Inside is Lx19 distance switch. Suitable for steel pipe and cable siring. Suitable for GB3836-2000,IEC60079 standard request.