Best Carbon Monoxide Detectors: First Alert SA501CN2 ONELINK Wireless Battery Operated Smoke Alarm, 2-Pack

If you want to build an integrated smoke alarm system, but without the cost and hassle of retrofit wiring in your home, the ONELINK Wireless Smoke Alarm Two Pack is an ideal choice. These alarms provide ultimate protection from a deadly threat, and they are packed with innovative features that give you precious time in the event of a fire. And because they are able to wirelessly communicate with each and with other ONELINK devices, these alarms can help you create a whole-home safety network.

Keep your entire home safe with a network of ONELINK alarms that communicate with each other wirelessly.

ONELINK's mesh network ensures you'll hear an alarm no matter where you are in the house.

The ONELINK Wireless Smoke Alarm Two Pack
At-a-Glance:

Expand or create an interconnected smoke alarm system.
Loud 85-dB siren; dual purpose mute/test button.
Photoelectric technology detects smoldering fires and reduces false alarms.
Easy-access battery door; includes 4 'AA' batteries

You'll hear the loud 85-dB siren even when sleeping or showering. View larger.

Faster Notification for Faster Escape
In the event of a fire, every second counts. Unfortunately, traditional battery-operated alarms can often cost you precious time. For example, if a fire starts in your basement while you're asleep upstairs, you may not hear the smoke alarm, and it may take several minutes before the heat and smoke reaches an alarm that's close enough for you to hear its siren.

Thankfully, the ONELINK Wireless Smoke Alarms are designed to provide the earliest warning possible and give you valuable time in an emergency. When either of these clever devices detects smoke, all the ONELINK alarms in your home will sound immediately, increasing your chances of getting out safely.

Interconnectivity Without the Wires
Until now, alarms that could signal each other were only available in homes with hardwired systems. All ONELINK alarms, however, communicate with each other wirelessly through integrated radio frequency. This means that when one sounds, they all sound, providing a whole-home safety network.

This two-pack of ONELINK alarms helps you create a new system or expand an existing 120-volt AC system of up to 18 alarms. Just replace one or two of the alarms with a ONELINK Wireless Smoke Alarm, and your alarms will continue to be able to communicate with one another.

Accurate Technology Minimizes False Alarms
Utilizing photoelectric technology to sense smoke, ONELINK Wireless Smoke Alarms provide optimal protection against smoldering fires. This technology also reduces the chance of false alarms caused by cooking or bathing.

Designed for Safety and Ease of Use
As user-friendly as they are effective, each ONELINK Wireless Smoke Alarm has a dual-purpose button that silences the alarm and tests the system's function. And because the alarms each emit a loud 85-dB siren, you'll be sure to hear them, even if you're asleep or in the shower. The audible low-battery signal can be muted for up to eight hours (so as not to disturb your sleep).

Additionally, each alarm has an easy-access battery door that allows for quick changes without necessitating that you remove the alarm from the ceiling. An optional theft-protection lock prevents unauthorized removal of the batteries or unit.

As safe as they are easy to use, these ONELINK smoke alarms are FCC compliant for wireless device standards, and they meet UL217 standards for wireless smoke alarm systems.

Each ONELINK Wireless Smoke Alarm is backed by a 10-year limited warranty.

What's in the Box
Two Wireless Smoke Alarms; four 'AA' batteries; instructional DVD; and manual.