
DAS wired addressable fire alarm · Detectors
DAS-SD-C324Conventional photoelectric smoke detector
Conventional photoelectric smoke detector of the DAS series, for use with conventional fire alarm panels.
- Drift compensation for dust, temperature and humidity
- Smoke chamber resistant to insects and dust
- 3-layer conformal-coated circuit board, 304 stainless-steel contacts
Price on request
Original manufacturer documents: DAS wired fire alarm catalogue (Tan Vien, 10/2026)
DAS-SD-C324 CONVENTIONAL PHOTOELECTRIC SMOKE DETECTOR

- A microchip samples in real time and processes the data to calculate smoke density, ensuring fast and accurate alarms.
- Compensation for drift caused by dust accumulation, temperature and humidity helps minimize false fire alarms.
- The detector contacts are non-polarized, which simplifies installation, wiring and maintenance of the system.
- The electronic circuit board is conformally coated in 3 layers against moisture and corrosion and combined with 304 stainless-steel contacts, so the device operates reliably even in environments with acid or alkali vapors or high humidity.
- The photoelectric smoke detector features an intelligent smoke sampling chamber that keeps out insects and dust, extending the cleaning and maintenance interval of the detector to up to 2 years.
- Can be connected to a 5 VDC remote fire indicator lamp.

DAS-SD-C324 technical specifications
| Model | DAS-SD-C324 |
|---|---|
| Type | Conventional photoelectric smoke detector |
| Operating voltage | 24 VDC |
| Operating current | Normal < 50 µA; alarm 1.5–20 mA |
| Remote indicator lamp | Can connect a 5 VDC remote fire indicator lamp |
| Contacts | Non-polarized, 304 stainless steel |
| Circuit protection | 3-layer conformal-coated PCB, moisture- and corrosion-resistant |
| Signal processing | Real-time sampling; drift compensation for dust, temperature and humidity |
| Coverage area | As per the applicable design codes and standards (in Vietnam: TCVN 5738:2021) |
| Environment | 0 °C to +55 °C |
| Dimensions | Ø105 × 43 mm |
| Weight | 75 g |
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