BLACK+DECKER Smoke + Heat Alarm - SM120

ADVANCED MULTI-SENSOR FIRE DETECTION: Equipped with both an optical smoke sensor and a thermistor ...

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B&QB&Q - Black + Decker Multi Sensor Smoke Alarm + Heat Sensor. 10 Year Sealed Lithium Battery Included. Enhanced Multi Sensor Smoke Alarm
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eBayBLACK+DECKER Multi-Sensor Smoke And Heat Alarm. Battery Powered Medium, White
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Product Information

Full details

The BLACK+DECKER Smoke + Heat Alarm (SM120) is designed for homeowners seeking advanced, low-maintenance fire detection. It offers rapid detection of both slow-smoldering and fast-flaming fires through its dual optical and heat sensors. While its sealed 10-year battery eliminates replacement hassles, users should be aware that it is a single-station device and not interconnected.

All features

Model Part NumberSM120
BrandBlack + Decker

Extended Product Information

FAQs

What types of fires does this alarm detect?

This alarm uses both an optical smoke sensor and a thermistor heat sensor. It is designed to detect both slow, smoldering fires (detected by smoke) and fast-flaming fires (detected by heat).

How long does the battery last?

The alarm features a sealed 10-year lithium battery that provides continuous power for the lifespan of the unit.

Do I need to replace the batteries regularly?

No, the battery is sealed and designed to last for 10 years. After 10 years, the entire alarm unit needs to be replaced.

Can this alarm be interconnected with other alarms?

No, the SM120 is a single-station alarm and cannot be interconnected with other smoke or CO alarms.

How do I clean the smoke and heat alarm?

You can clean the exterior of the alarm by gently vacuuming it with a soft brush attachment once a month. Avoid using detergents or solvents.

What does the alarm memory indicator mean?

The alarm memory indicator is a feature that shows if the alarm has previously detected a fire event. This can help identify when an alarm was triggered.

What is the lifespan of this smoke and heat alarm?

The recommended lifespan for this alarm is 10 years from the date of purchase or manufacture, after which the entire unit should be replaced.

Troubleshooting

Alarm chirps intermittently.

This usually indicates a low battery. Since the battery is sealed, the entire unit needs to be replaced. If the unit is less than 10 years old, ensure it is not in a location with extreme temperatures or humidity.

Alarm does not sound during test.

Ensure the alarm is properly attached to the mounting bracket. If it still does not sound, the unit may be faulty and needs replacement.

False alarms occur frequently.

Ensure the alarm is not located too close to cooking appliances, bathrooms with showers, or heating vents. Clean the alarm with a vacuum cleaner brush. If false alarms persist, consider relocating the alarm if possible or replacing it.

Alarm activates but no smoke or heat is present.

This could be a nuisance alarm due to steam, dust, or insects. Use the silence button to temporarily quiet the alarm. Clean the unit and check its location. If the problem persists, replace the unit.

Pros and Cons

Pros

  • Dual smoke and heat sensors for broad fire detection.
  • Long-lasting 10-year sealed battery for convenience and reliability.
  • Easy to install and maintain.
  • Certified to high safety standards (BSI).
  • Reduces nuisance alarms compared to single-sensor types.

Cons

  • Single-station alarm (not interconnected with other alarms).
  • Sealed battery means the entire unit must be replaced after 10 years.
  • Does not include smart features like Wi-Fi connectivity or app notifications.

Setup, Compatibility & Care

Setup:

  1. Choose Location: Select a mounting location according to local building codes and manufacturer recommendations (typically on ceilings or walls, away from vents and doors).
  2. Mount Bracket: Secure the mounting bracket to the chosen surface using the provided screws.
  3. Attach Alarm: Twist the alarm onto the mounting bracket to secure it. The unit is powered by its sealed internal battery.

Compatibility:

  • This is a single-station alarm and is not designed to interconnect with other smoke or CO alarms.
  • Suitable for use in residential properties.

Care:

  • Weekly Test: Press the test/silence button weekly to ensure the alarm is functioning correctly.
  • Cleaning: Gently vacuum the exterior of the alarm with a soft brush attachment once a month to remove dust. Do not use detergents or cleaning solvents, as they can damage the unit.
  • Battery: The battery is sealed and lasts for 10 years. The unit must be replaced after the 10-year lifespan or when the low battery chirp begins.

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