Mar 19, 2025

MSA SENTRY Gas Detection Controller

  • Type of Notification: Product Safety Notification
  • FM Approval Status: FM Approved

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FM Approvals has been notified by MSA Innovation LLC dba MSA - The Safety Company that an O-ring was omitted, and an incorrect retaining ring was used for the buzzer for the FM Approved SENTRY io Gas Detection Control units. Attached is the MSA Corporate Center Service Advisory customer notification for your reference.

Company Identity: MSA Innovation LLC dba MSA - The Safety Company,
1100 Cranberry Woods Drive
Cranberry Township, PA, USA

Product Identity: SENTRY io, Gas Detection Control units

FM Approval Status: FM Approved for Performance and Hazardous Locations

Hazard Involved: FM Approvals has been notified by MSA Innovation LLC dba MSA - The Safety Company that an O-ring was omitted, and an incorrect retaining ring was used for the buzzer of the FM Approved SENTRY io Gas Detection Control units manufactured between March 1, 2023, and February 14, 2025. The O-ring used in conjunction with the proper retaining ring, torqued to the proper specifications are essential to the indoors and outdoors (Type 3X, IP65) ratings only.

The attached Service Advisory from MSA Innovation LLC dba MSA - The Safety Company provides direction as to necessary steps if you are in possession of a suspect unit manufactured between March 1, 2023, and February 14, 2025. Please follow the instructions as indicated and reference the list of the serial numbers of affected units.

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    FM Approvals has been notified by MSA Innovation LLC dba MSA - The Safety Company that an O-ring was omitted, and an incorrect retaining ring was used for the buzzer of the FM Approved SENTRY io Gas Detection Control units manufactured between March 1, 2023, and February 14, 2025. The O-ring used in conjunction with the proper retaining ring, torqued to the proper specifications are essential to the indoors and outdoors (Type 3X, IP65) ratings only. The attached Service Advisory from MSA Innovation LLC dba MSA - The Safety Company provides direction as to necessary steps if you are in possession of a suspect unit manufactured between March 1, 2023, and February 14, 2025. Please follow the instructions as indicated and reference the list of the serial numbers of affected units.