Edwards Signaling SD-2W is a two-wire duct smoke detector that use differential sensing to prevent gradual environmental changes from triggering false alarms. A rapid change in environmental conditions, such as smoke from a fire, causes the detector to automatically signal an alarm condition but dust and debris accumulated over time does not change alarm sensitivity.
| Make | Edwards Signaling |
|---|---|
| Manufacturer | Edwards Signaling |
| Model code | SD-2W |
| Style | Rate of rise |
| Mode | Conventional |
| Type | Smoke |
| Additional info |
Edwards Signaling SD-2W is a two-wire duct smoke detector that use differential sensing to prevent gradual environmental changes from triggering false alarms. A rapid change in environmental conditions, such as smoke from a fire, causes the detector to automatically signal an alarm condition but dust and debris accumulated over time does not change alarm sensitivity. |