
DAS wired addressable fire alarm · Detectors
DAS-SHD-A324Addressable multi-sensor smoke and heat detector
Addressable combined photoelectric smoke and heat detector of the DAS series, for early fire detection and fewer false alarms.
- Measures smoke density and temperature simultaneously
- Drift compensation for dust, temperature and humidity
- 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)
Addressable multi-sensor smoke and heat detector DAS-SHD-A324
- The address is set with a dedicated handheld device, making system management easy.
- A microchip samples in real time and processes the data to calculate smoke density and ambient temperature, 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.

DAS-SHD-A324 technical specifications
| Model | DAS-SHD-A324 |
|---|---|
| Type | Addressable combined photoelectric smoke + heat detector |
| Operating voltage | 24 VDC loop |
| Operating current | Normal 0.5 mA; alarm < 1.5 mA |
| Addressing | By handheld address programmer |
| Contacts | Non-polarized, 304 stainless steel |
| Circuit protection | 3-layer conformal-coated PCB, moisture- and corrosion-resistant |
| Signal processing | Real-time smoke and temperature 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 | Ø100 × 55 mm |
| Weight | 100 g |
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