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Item Description
First Alert Onelink smoke alarms link the alarms throughout your home. 120VAC hardwired wireless detectors with battery backup integrate single alarms into a system. Expand protection by replacing one existing hardwired alarm with Onelink and linking to existing hardwired and battery operated alarms. By adding Onelink battery powered alarms elsewhere, when one alarm sounds, all alarms will be notified. Easily link alarms with the press of a button. Photoelectric smoke sensor reduces nuisance alarms. Easy access battery drawer: no need to remove an alarm from the ceiling to change battery. Includes 10-year limited warranty. Meets UL standards.
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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 |
| Walmart No.: | 001182558 |
First Alert Wireless Onelink Smoke and Fire Detector, SA521CN-3ST 1 1
With better instuctions it would be excellent 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. 02/19/2009
1-1 of 1 total reviews
Product Warranty and Service Plan Options
Product warranty:
10 Years
See details
Walmart Product Care Plans
A limited product warranty is included free for most items. With an optional Walmart Care Plan you can extend coverage up to 3 additional years. Walmart Care Plan Extended Warranties cover 100% of the cost for repair or replacement, including shipping charges for the exchange. See Details
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