FIRST ALERT Hardwired Wireless Smoke Alarm with Photoelectric Sensor and Battery Backup, SA521CN-3ST
Brand: FIRST ALERT
Categories: Tools & Home Improvement, Safety & Security, Fire Safety, Smoke Detectors & Fire Alarms


Help keep your family safe with this hardwired smoke alarm that wirelessly interconnects with other First Alert–enabled alarms to create a home safety network
Equipped with photoelectric smoke sensor optimized to detect larger smoke particles produced by smoldering fires; helps minimize the number of false alarms
Wirelessly connect up to 18 First Alert enabled alarms for the maximum in whole-home protection
Hardwired alarm includes 2 AA backup batteries for continued monitoring in the event of a power outage
Includes test/silence button, low-battery warning, EZ access battery door

Sensor Type: Photoelectric
Power Source: ‎Battery Powered
Alarm: Visual
Item Weight: ‎12.5 ounces
Brand: FIRST ALERT
Style: ‎Hard-wired
Color: ‎White
Item Dimensions LxWxH: 5 x 2 x 5 inches
Item Package Quantity: ‎1
Included Components: ‎Electrical & Heating;Security and Intrusion Monitoring;smoke-detectors
Pattern: ‎Alarm
Voltage: ‎120 Volts
Batteries Required?: ‎Yes
Manufacturer: ‎First Alert
Date First Available: August 17, 2005
ASIN: B000EVO9D4
Item model number: ‎SA521CN-3ST
Batteries Included?: ‎Yes
Battery Cell Type: ‎Alkaline
Customer Reviews: 4.5 out of 5 stars 2,353 ratings 4.5 out of 5 stars
Size: ‎1-Pack
Is Discontinued By Manufacturer: ‎No
Part Number: ‎SA520B-SA521CN
Product Dimensions: ‎5 x 2 x 5 inches
Country of Origin: ‎Mexico
Number Of Pieces: ‎1