First Alert SA521CN-3ST Onelink Wireless Hardwired Smoke Alarm

4.5 stars
4 reviews ratings
Q&A
Walmart #: 001182558
$36.08
List price $54.88  (You save $18.80)
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  • Easily link alarms throughout your house
  • One alarm sounds and all other alarms are notified
  • Photoelectric smoke sensor reduces nuisance alarms
  • Customers also considered

    About this item

      Wirelessly interconnect alarms. 120VAC hardwired wireless interconnect smoke alarm with battery backup. To expand protection to include both existing hardwired alarms and new wireless alarms, simply replace one existing hardwired alarm with Onelink, then add Onelink battery operated alarms elsewhere and when one alarm in either series alarms, all alarms will be notified. Easily link alarms together with the press of a button. When one alarm sounds, they all sound for maximum whole home protection. Photoelectric smoke sensor reduces nuisance alarms from cooking smoke or shower steam. Easy access battery drawer: no need to remove alarm from ceiling to change battery. 10-year limited warranty. Meets UL standards.

      120v ac hardwired, easily replace one existing hardwired alarm with Onelink SA521 and then add Onelink battery operated alarms to connect wireless alarms with hardwired alarms--when one sounds, they all sound
    • Battery backup, provides consistent protection for added safety during power outages
    • Photoelectric smoke sensing, optimal protection from smoldering fires
    • Reduces false alarms like those caused by cooking fires and shower steam
    • Mute button, mutes unnecessary alarms immediately. also tests alarm function with same button
    • Eco-friendly, completely recyclable as an electronic device
    • EZ access battery door, no need to remove alarm from ceiling to change battery
    • Optional theft-prevention lock, when activated, batteries and/or alarm cannot be removed without proper tools
    • 2AA batteries included
    • Loud 85db alarm
    • 10-year limited warranty
    • Smoke alarms should be replaced every 10 years for maximum protection
    • Meets UL217 standard
    • FCC compliant.

    Specifications

    Multi Pack Indicator: No
    Model No.: SA521CN-3ST
    Shipping Weight (in pounds): 0.93
    Product in Inches (L x W x H): 5.0 x 2.0 x 5.0
    Assembled in Country of Origin: USA or Imported
    Origin of Components: USA or Imported
    Walmart No.: 1182558
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    Customer reviews

    Customer Reviews | 4 reviews | 4.5 out of 5

    4.5 stars

    4 reviews | 4.5 out of 5

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    Would recommend to a friend

    Age

    Gender

    Being prepared for an unwanted fire...
    1/20/2013

    Customer review by rfg2

    5.0 stars by rfg2

    Being prepared for an unwanted fire is what these devices do. Being in one room sleeping and not hearing a smoke alarm in another room is what could happen. The Con: If other people in near by residents owning similar devices have these alarms that would affect the alarms in your resident. The device does have the ability to by pass the wireless mode and be wired together using the same fuse circuit. That would be a hassle to do, it does have that capability.

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    rfg2
    chicago
    Would recommend to a friend? Yes
    Ownership:2 - 7 weeks
    Gender:Male
    Age:65 or older
    Usage:Every day
    Verified purchaser
    Verified purchaser
    Customer has been confirmed to have purchased the item from Walmart.
    great alternative to hard wiring
    6/15/2013

    Customer review by Smokeybee

    5.0 stars by Smokeybee

    Excellent for extending existing smoke system. Easy programming.

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    Smokeybee
    Daytona Beach, Florida
    Would recommend to a friend? Yes
    Ownership:2 - 7 weeks
    Gender:Male
    Age:45 - 54
    Usage:Every day
    Verified purchaser
    Verified purchaser
    Customer has been confirmed to have purchased the item from Walmart.
    With better instuctions it would be excellent
    2/19/2009

    Customer review by JoeandGlo

    4.0 stars by JoeandGlo

    A very practical way to protect rooms that were not wired into an already built-in smoke alarm system. Worked very well. Instructions need improvement. On testing the units all seem to have a slightly different sound producing a symphony of alerts.

    Was this review helpful? (5) (4)
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    JoeandGlo
    State College, PA
    Would recommend to a friend? Yes
    Ownership:3 - 4 months
    Gender:Male
    Age:65 or older
    Usage:A few times per year
    1-3 of 4 total reviews See all

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    Policies & Plans

    Warranty Plan

    Walmart Product Care Plans
    A limited product warranty is included free for most items. With an optional Walmart Care Plan you can enhance the manufacturer's coverage from the date of purchase . Walmart Product Care Plans cover 100% of the cost for repair or replacement, including shipping charges for the exchange.

    We'll show you Care Plan options and pricing at checkout if applicable, or go to www.walmart.com/careplans for more information.

    Product warranty: 10 Years See details

    Supplier Warranty: 10-Year Limited
    Did you buy this in a Walmart store?  Get a warranty for it here.

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