The Most Popular First Alert SA521CN ONELINK Hardwire Wireless Smoke Alarm with Battery Backup - On Sale

First Alert SA521CN ONELINK Hardwire Wireless Smoke Alarm with Battery Backup

Product Details

• Amazon Sales Rank: #7093 in Home Improvement
• Size: 1 Pack
• Color: multicolor
• Brand: First Alert
• Model: SA521CN
• Released on: 2007-05-02
• Number of items: 1
• Dimensions: 2.00" h x5.00" w x5.00" l,1.00 pounds

Features

• Hardwire, interconnected wireless smoke alarm with battery backup
• Uses photoelectric sensing technology which is environmentally friendlier
• Low battery warning; simple to use silence/test button; pullout battery drawer
• Add additional battery operated First Alert ONELINK alarms to expand without wires
• 120-volt with 2 AA battery backup

See Details