Add $175.00 for FREE shipping
See all kits!!
Alert System Type
Smoke / Fire / Carbon Monoxide
Sensor Type
Smoke / Heat
Location
Indoor
Features
Audible Indicator
Battery Backup
Hardwired
Wireless
Color
White
Ease of Installation
Intermediate (Installs < 60 minutes)
Brand
First Alert
Other Ways to Shop
In Stock
On Sale
Order the Smarthome Catalog


Build a Safety network of Interconnected Alarms in Your Home Without the Cost and Hassle of Wiring
First Alert SA521CN-3ST Onelink Integrated Wireless Smoke Alarm
First Alert SA521CN-3ST Onelink Integrated Wireless Smoke Alarm
First Alert SA521CN-3ST Onelink Integrated Wireless Smoke Alarm
Item# 79861
Price: Normally $75.99 
Hot Deal $50.60
Qty:
Free shipping on orders over $175 - See Details

Overview

  • Wireless integration with other alarms in your home
  • Photoelectric smoke sensing alarm with mute button
  • Eco-friendly
  • Easy access battery door
  • Optional theft-prevention lock to protect alarms
  • Loud 85db alarm

Essential Info

The First Alert SA521CN-3ST Onelink Integrated Wireless Smoke Alarm links the alarms throughout your home. This 120VAC hardwired wireless detector with battery backup integrates 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.

Works with the INSTEON Smoke Bridge
The First Alert ONELINK Smoke detectors can be linked to the INSTEON Smoke Bridge to create email and text message alerts in case of smoke, fire or carbon monoxide using an INSTEON Hub or other central controller. It can also be linked to lights or other INSTEON devices manually or via software to turn lights on instantly in the event of an alert to make the escape faster, easier and safer.


Manuals/Software

What's Included

  • Wireless Smoke Alarm
  • 2AA Batteries
  • Specifications

  • Sensor: Photoelectric
  • Warranty Claim: 10-Year Limited
  • Color: white
  • Battery backup: AA
  • Product Dimensions (L x W x H): 8.3 (inches) x 7.18 (inches) x 10.0 (inches)
  • Reviews

    8 Ratings
    5 star: 88%  (7)
    4 star: 0%  (0)
    3 star: 0%  (0)
    2 star: 0%  (0)
    1 star: 12%  (1)
    Average Customer Rating
    (8 customer ratings)
    Share your thoughts with other customers
    JOHN -- dallas, TX   4/13/2014
    I replace two old hard-wired detectors and have been pleased with how these work with the ISY.
    JOHN -- dallas, TX   4/13/2014
    Easy install. Works well. The two detectors communicate with each other and with the ISY.
    JASON -- daytona beach, FL   5/31/2013
    Love it! SUPER EASY to set up and install. Linked to smoke bridge right away. Great product!
    KEVIN -- clearfield, UT   3/14/2013
    WOW, along with the Insteon smoke link bridge I can now monitor my home away from home for smoke, too cool. It also linked with my older smoke detectors (hardwired) though out the house.

    Related Items

    Customers Also Bought

    Sign-up for Exclusive Email offers 
    ORDERING INFO
    How to Order Track Your Package Shipping Returns Contact Us Customer Service Retail Store
    MORE INFO
    Getting Started Learning Center FAQ Dealers Customer Testimonials Affiliate Program
    OUR COMPANY
    About Us INSTEON Press Awards Employment Guarantees Security & Privacy
    STAY INFORMED
    Free Catalog Email Newsletter Forum RSS Site Map
    Have questions? Call us at 800-762-7846 (Mon-Fri 5am-7pm and Sat 6am-3pm PT) or send us a message
    Place your order by 3pm PT for same day shipping
    Copyright 1995-2014 SMARTHOME™
    Verisign Secure Site PayPal Acceptance Mark