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      Product ID: 61968443

      Indoor home security alarm system CO Alarm

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      Description

      LZ-2902 CO Smoke Alarm Product Description
      The LZ-2902 is a combined CO (carbon monoxide) and smoke alarm designed to provide comprehensive protection against both smoke and carbon monoxide threats in residential and commercial settings. This advanced device features a long-lasting battery, high-sensitivity sensors, and user-friendly indicators to ensure continuous and reliable safety monitoring.

      Key Features:

      • Power Supply: DC 3V (non-replaceable battery)
      • Battery Life: 10 years (non-replaceable)
      • Sensor Type: Electrochemical Figaro CO Sensor
      • Alarm Signal: Loud >85dB(A) alarm signal (measured at 3 meters)
      • Indicators:
        • Power/Fault/Alarm indicator
        • Visual LED for power and alarm status
      • User Interface:
        • Test/Menu button for easy operation and testing
        • Low Battery warning (audible and visual)
      • Product Lifetime: 10 years from initial power-up
      • LED Display Range: 20~999 PPM (parts per million) for CO concentration
      • End-of-Life Indicator: Alerts users when the device needs to be replaced
      • Sensitivity Setting: Conforms to BS EN 50291‑1:2018 standard
      • Maximum Concentration Memory Function: Stores the highest CO concentration detected for reference

      Product Highlights:

      1. Dual Protection: Combines smoke detection and carbon monoxide detection in a single unit, providing comprehensive protection against both fire and CO poisoning.
      2. Long-Term Reliability: With a 10-year battery life and non-replaceable design, the LZ-2902 ensures continuous protection without the need for frequent battery changes.
      3. High Sensitivity: The electrochemical Figaro CO sensor and smoke detection chamber provide accurate and reliable detection of both smoke and CO at low concentrations.
      4. User-Friendly Design: Features a Test/Menu button for easy testing and configuration, along with clear visual and audible indicators for power, fault, and alarm status.
      5. Compliance with Standards: Meets the stringent requirements of the BS EN 50291‑1:2018 standard, ensuring high sensitivity and reliability.
      6. Convenient Monitoring: The LED display shows real-time CO concentration levels, and the maximum concentration memory function helps track peak exposures.
      7. End-of-Life Indicator: Provides a clear indication when the device needs to be replaced, ensuring continuous safety without interruption.

      Applications:

      The LZ-2902 CO Smoke Alarm is suitable for a wide range of applications, including:
      • Residential Homes: Protects families from both smoke and CO hazards in living areas, bedrooms, and kitchens.
      • Commercial Buildings: Provides essential safety monitoring in hotels, dormitories, and rental properties.
      • Public Spaces: Ensures safety in community centers, nursing homes, and childcare facilities.
      • Older Buildings: Offers reliable protection in structures with outdated electrical systems or other fire hazards.

      Conclusion:

      The LZ-2902 CO Smoke Alarm is a reliable and versatile safety device that combines advanced technology with user-friendly features. Its long battery life, high sensitivity, and compliance with international standards make it an ideal choice for protecting lives and property in various settings.
       

      DC 3V CO Alarm Product Parameter

      Model No. LZ-2902
      Standard EN50291-12018
      Voltage DC 3Vnon-replaceable
      Standby current ≤15uA
      Alarm current ≤60mA
      Sensor type Electrochemical Figaro CO Sensor
      Temperature 10°C ~ +40°C
      Ambient Humidity 30~95%R.H
      LED indication Red LED & Buzzer
      Hush time 8~9min
      Product life 10 years
      Sound pressure ≥85dB(around 3m)
      Weight ≈103g
      Product size Φ101*101*30mm
      Installation way Wall or Ceiling mounting

       

      Where to Install Carbon Monoxide Alarms?

      1. On Every Level of the Home
      Install carbon monoxide (CO) alarms on every level of your home, including the basement and attic. CO can spread evenly through the air, so having alarms on each floor ensures that you can detect the gas no matter where it accumulates.
      2. Near Bedrooms and Sleeping Areas
      Place alarms within 10 feet of each bedroom door or in the hallway connecting multiple bedrooms. This ensures that the alarm can wake you up if CO levels rise while you are asleep.
      3. Near Fuel-Burning Appliances
      Install alarms within 5 to 20 feet of fuel-burning appliances such as gas furnaces, water heaters, and fireplaces. However, avoid placing them directly above or beside these appliances to prevent false alarms from the small amounts of CO they may produce during normal operation.
      4. Near Attached Garages
      If your home has an attached garage, place an alarm near the garage door to prevent CO from car exhaust from seeping into the house.
      5. Avoid Installing in the Following Locations
      • Kitchens and Bathrooms: Steam and humidity in these areas can cause false alarms.
      • Near Windows or Ventilation Openings: Airflow can interfere with the alarm's detection.
      • Directly Above Vents or in Enclosed Spaces: Such as inside cabinets.
      • In Direct Sunlight or Extreme Temperature Areas: These conditions can affect the alarm's performance.
      6. Installation Height
      Wall-mounted alarms should be at least 5 feet above the floor, while ceiling-mounted alarms can be installed at any height. CO is slightly lighter than air and tends to rise with warm air, but the most important factor is to ensure that alarms are installed on every floor and near sleeping areas.
      7. Additional Tips
      • Combination Smoke/CO Alarms: If you are installing combination smoke/CO alarms, follow the installation guidelines for smoke alarms, which typically recommend ceiling or high-wall placement.
      • Testing and Maintenance: Test the alarm monthly to ensure it is working properly. Replace the battery promptly if the alarm signals low power.

      Conclusion

      Proper installation of carbon monoxide alarms can significantly enhance home safety by providing early warnings of potential hazards.

       

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