Series 17 is FM approved for use in Class I, Class II, Division 1, and groups A-G hazardous atmospheres.  Featuring SPST isolated contacts and field adjustable sensitivity by use of external resistors.

Series 17 is FM approved for use in Class I, Class II, Division 1, and groups A-G hazardous atmospheres.  Featuring SPST isolated contacts and field adjustable sensitivity by use of external resistors.

Series 17 is FM approved for use in Class I, Class II, Division 1, and groups A-G hazardous atmospheres.  Featuring SPST isolated contacts and field adjustable sensitivity by use of external resistors.

Series 17 is FM approved for use in Class I, Class II, Division 1, and groups A-G hazardous atmospheres.  Featuring SPST isolated contacts and field adjustable sensitivity by use of external resistors.

Series 17 is FM approved for use in Class I, Class II, Division 1, and groups A-G hazardous atmospheres.  Featuring SPST isolated contacts and field adjustable sensitivity by use of external resistors.