High deceptive alarm immunity with intelligent signal processing Innovative airflow monitoring including single-hole monitoring detects obstruction and breakage Initial set-up made easy by automatic initialization Maintains LSN loop functions in the event of wire interruption or short-circuit thanks to two integrated isolators SL-versions: Noise reduction to 38 dB(A) by extremely quiet fan and up to 34 dB(A) with additional sound absorber
| Make | Bosch |
|---|---|
| Manufacturer | Bosch Security Systems |
| Model code | FAS-420-TT1 |
| Series | Bosch FAS‑420 Aspiration smoke detector series |
| Type | Smoke |
| Additional info |
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