• Model number PR710;• Low-profile smoke alarm reliably detects smoke from smoldering fires;• Slim, easy-to-install design is half as thick as standard smoke detectors;• Built-in 10-year Li-Ion battery offers continuous power for the life of the alarm;• Photoelectric sensor detects smoke while minimizing false alarms;• Patented smoke entry system allows for a direct path to the sensor;• Mounts unobtrusively on the ceiling or wall;• 10-year limited warranty;• Includes mounting bracket;Length: 8.50"Width: 6.75"Height: 1.25"Note: Due to the existence of lithium batteries, additional shipping charges or restrictions may apply. Shipping restrictions may require a ship method that is limited to GROUND and this may impact time in transit and available delivery locations.;