| Manufacturer | Model | Type | Data | |
|---|---|---|---|---|
| Siemens Industry, Inc. | FD0421 and OP921 approved as a smoke detector, for use in Category 1, 2, and 3 spaces. | Smoke Detector | specsimagetext | Request quote Details |
| Siemens Industry, Inc. | OP121 approved as a smoke detector, for use in Category 1, 2, and 3 spaces. | Smoke Detector | specsimagetext | Request quote Details |