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        Legrand 643088 | Wired Photoelectric Smoke Alarm Surface Mount | 10YR Lithium Backup

        The Legrand 643088 is a surface-mounted, mains-powered smoke alarm featuring a photoelectric sensor and a built-in 10-year lithium battery backup for continued protection during power loss. Designed for homes, rentals, or renovations, it supports both hardwired and wireless interconnect (up to 20 units), enabling system-wide alerts without running additional cabling.

        Built to resist false alarms, it includes sealed mesh protection over the sensor chamber and is tested to endure heat and humidity. A large test/hush button, LED indicators, and UV-resistant housing offer user-friendly operation and long-term durability.

        Legrand 643088 Features

        • Surface mount design: Installs easily on ceilings or walls.
        • Photoelectric sensor: Detects visible smoke from smouldering fires.
        • 10-year lithium battery backup: Maintains function during power outages.
        • RF/wired interconnect: Supports up to 20 alarms without cabling.
        • Loud 85dBA alarm & LED indicators: Clear audible and visual alerts.

        643088 FAQ

        Q: Can I wire this smoke alarm in with others and also use wireless linking?
        A: Yes, it supports both wired and RF wireless interconnect.

        Q: Does the battery need replacing?
        A: No, the battery is sealed and lasts 10 years—the life of the unit.

        Q: How many alarms can I interconnect wirelessly?
        A: Up to 20 compatible Legrand alarms can be wirelessly linked.

        (643088)

        100-Day Fuss-Free Returns
        We want you to love what you buy—but if you change your mind, that’s okay too. That’s why Sparky Direct offers a 100-day money-back guarantee.

        • Items must be unused, with all parts, accessories, and original packaging.
        • We can’t accept returns if the product is damaged, incomplete, or not in resalable condition.
        • Proof of purchase is required.
        • Return shipping is the responsibility of the customer. 

        If your item isn’t in its original condition, please contact us before returning it—we might save you time and money.


        All products come with a manufacturer’s or supplier’s warranty

        • Warranty starts from the Invoice Date
        • Some suppliers offer in-home warranties and handle claims directly, so you won’t need to uninstall or return the product. Chat with us to check if your product qualifies.
        • Sparky Direct isn’t responsible for losses caused by product failure.
        • Warranties are void if products aren’t installed by a licensed electrician.

        Damaged or Faulty Goods
        If your order arrives damaged or is faulty, let us know within 24 hours.

        • Sparky Direct will pay for return shipping via an emailed return label.
        • If the fault is confirmed, we will send you a replacement item or provide a refund.

        Contact us via our chat to arrange the return.


        Exclusions
        We can’t accept returns for:

        • Items that have been installed, modified, or used
        • Clearance, End of life, Discontinued, or special order items (unless faulty)
        • All PPE Items
        • Goods returned without original packaging or proof of purchase

        How to Request a Return

        1. Contact our customer service team with your order number.
        2. Confirm it’s eligible under our return or warranty policy.
        3. Pack the item securely and return it using a trackable service.
        4. Once we receive and inspect it, we’ll process your refund or replacement.

        Warranty starts from Invoice Date

        Domestic Use: 5 Year
        Commercial Use: 5 Year
        Warranty Method: Return to Sparky Direct

        Specification Details
        Cat. No. 643088
        Colour White
        Supply Voltage 230-240 V ~ 50 Hz
        Power Source Mains powered
        Sensor Type Photoelectric
        Mounting Type Surface (ceiling or wall) - screws
        Interconnect Type Wired and wireless (up to 20 interconnected alarms)
        Radio Frequency 434.2 MHz (no internet required)
        Battery Type Non-replaceable 10-year lithium (backup)
        Product Size Ø 148 × 55 mm
        Temperature Range 0°C to +40°C
        Humidity Range 10-95% at 20°C (non-condensing)
        Alarm Volume > 85 dBA at 3 metres*
        Recommended Lifespan 10 Years
        Alarm Pattern ISO 8201
        Quality System ISO 9001

        These specifications and characteristics outline physical, mechanical, electrical details.

        Brand Legrand
        SKU 643088
        Model # 643088
        Barcode # 9321001511458
        Package Weight 0.407kg
        Package Width 0.070m
        Package Height 0.155m
        Package Length 0.155m
        TYPE VALUE
        Type Smoke Alarm
        Brand Legrand
        Colour White
        Installation Area Indoor
        Battery Type Non-replaceable 10 year lithium battery
        Supply 230-240 V ~ 50 Hz
        Mount Type Surface Mount
        Interconnect Type Wired/Wireless
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