Fitted with Fenwal rate-compensated detector type 27121-20, Certification: Dual ATEX/IECEx approved Ex II 2 GD, Ex db sb IIB+H2 T6 (T3 @ +125ºC), Enclosure: LM25 marine grade alloy, 2 x M20 entries as standard, SIL 2 Approval, Temperature setting: 325°F, Options: EOL Resistor 36k, Diode voltage 5v6, Body Colour: Red