First Alert PR710 10-Year Battery Powered Slim Smoke Detector with Photoelectric Sensor

Dimensions (Overall): 5.2 Inches (H) x 5.2 Inches (W) x 1.21 Inches (D)
Weight: .41 Pounds
Includes: Battery
Package Quantity: 1
Requires Hardwired Installation: No
Battery: 1 Non-Universal Lithium Ion, Required, Included
Warranty: 10 Year Limited Warranty. To obtain a copy of the manufacturer's or supplier's warranty for this item prior to purchasing the item,
•Help keep your family safe with this battery-operated smoke alarm; the 10-year lithium-ion battery offers continuous power for the life of the alarm and provides continued monitoring even if there's a power failure
•Slim shape is half as thick as a standard smoke alarm; easy twist-lock mounting system and tamper-resistant design
•Equipped with photoelectric smoke sensor optimized to detect larger smoke particles produced by smoldering fires; helps minimize the number of false alarms
•Patented smoke entry system allows for a direct path to the sensor
•Features loud 85-decibel alarm and single test/silence button
•10-year limited warranty
Featuring a low-profile, contemporary design, the First Alert PR710 Slim Battery-Operated Photoelectric Smoke Alarm provides the same protection as a standard smoke alarm while taking up only a fraction of the space. This slim smoke alarm uses an ultra-reliable photoelectric sensor to detect smoke from slow-burning, smoldering fires and features a patented smoke entry system that allows a direct path to the sensor for more reliable detection. The 10-year lithium-ion battery provides continuous power for up to a decade, and the alarm requires no hardwiring for installation. The simple twist-lock mounting system installs easily onto a wall or ceiling, while the tamper-resistant locks help prevent removal of the battery to keep the alarm secure. A loud 85-decibel alarm sounds when smoke is detected, and a convenient test/silence button lets you easily check alarm function and mute false alarms.