SA304CN3 - Smoke detector FIRST ALERT - Free user manual and instructions
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| Product Type | Smoke Detector |
| Brand | First Alert |
| Model | SA304CN3 |
| Sensor Type | Ionization |
| Power Source | 9V Battery (included) |
| Battery Life | Approximately 1 year |
| Dimensions (Diameter x Height) | 4.5 in x 1.5 in (114.3 mm x 38.1 mm) |
| Weight (with battery) | 0.5 lb (226.8 g) |
| Mounting | Ceiling or Wall |
| Test/Silence Button | Yes |
| Low Battery Warning | Chirp every 30-60 seconds |
| End of Life Warning | Chirp pattern after 10 years |
| Installation | No wiring required, battery operated |
| Operating Temperature | 40°F to 100°F (4.4°C to 37.8°C) |
| Humidity Range | Up to 95% non-condensing |
| Compliance | UL Listed, meets NFPA 72 |
| Cleaning | Vacuum with soft brush annually |
| Battery Replacement | Replace at least once a year |
| Detector Replacement | Replace every 10 years |
| Warranty | Limited 5 years |
Frequently Asked Questions - SA304CN3 FIRST ALERT
Where should I install the First Alert SA304CN3 smoke detector?
Install on the ceiling or wall in or near sleeping areas, on every level of the home, and in hallways. Avoid kitchens, bathrooms, and garages to prevent false alarms.
How do I test the smoke detector?
Press and hold the Test/Silence button until the alarm sounds (3-5 seconds). Release the button to stop the test. Test weekly.
What does a chirping sound mean?
A chirp every 30-60 seconds indicates a low battery. Replace the 9V battery immediately. If chirping continues after battery replacement, the detector may need replacement.
How often should I replace the battery?
Replace the 9V battery at least once a year, or when the low battery warning chirps. Use a fresh, high-quality alkaline battery.
How long does the smoke detector last?
The lifespan is 10 years from the date of manufacture. Replace the entire unit after 10 years, even if it appears to work.
How do I clean the smoke detector?
Vacuum the vents and exterior with a soft brush attachment at least once a year to remove dust and debris that can affect performance.
What causes false alarms?
False alarms can be triggered by steam, cooking fumes, high humidity, or dust. Install the detector at least 20 feet away from kitchens and bathrooms.
Can I install this detector in a mobile home?
Yes, the SA304CN3 is suitable for use in mobile homes and RVs, provided it is mounted securely on a ceiling or wall.
Does the detector work during a power outage?
Yes, because it is battery-operated, it continues to function during power outages. Ensure the battery is fresh for uninterrupted protection.
What should I do if the alarm sounds continuously?
If the alarm sounds without a clear cause, press the Test/Silence button to hush for up to 15 minutes. If it persists, check for smoke, dust, or low battery. Otherwise, replace the detector.
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USER MANUAL SA304CN3 FIRST ALERT
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Product information
Brand : FIRST ALERT
Model : SA304CN3
Category : Smoke detector