Mini-Hermet - Explosion Proof, Hermetically Sealed (Direct or remote mount) Brochures: Form 220 Electromechanical Temperature Switches I/O Manuals: Form 169 Temperature Switches Hermetically sealed snap switch(es) Ranges from -50° to 1000° F Set point adjustment without declassification of hazardous area Unit: UL/CSA: Class I, Group A, Div. 1; ATEX: EEx d IIC; SnapSw: UL/CSA,