Featuring the D-A-F rate compensated heat detector elements with stainless steel enclosures and hermetically sealed contacts and certified with the E2S explosion proof and increased safety junction boxes. Approvals include IECEx, ATEX, UL, cUL. Versions include Class I/II Div 1, Ex db explosion proof and flame proof as well as Class I/II Div 2, Ex db eb increased safety and Zone 0 Ex ia intrinsically safe models. The robust IP66/67, Type 4/4X corrosion proof termination enclosures are available in GRP (glass reinforced polyester), 316L stainless steel and LM6 marine grade copper free aluminium. With innovative features such as the E2S LED indicator module and the multi position mounting bracket, the E2S range of D1xH1, STExH1, GNExH1 and D2xH1 heat detectors offer a robust and reliable source for alarm initiation in the most hazardous and demanding of applications.