Features:

• Two types of sensors offers best protection for all types of fires
• Ionization sensor protects best against fast flaming fires while the Photoelectric sensor protects best against slow smoldering fires
• Hush Feature temporarily silences nuisance alarms
• Battery backup two 9V batteries included
• UL Approved

Editor Reviews:

Amazon.com Product Description:
Protect the home or office from both fast burning and smoldering fires with this dual-sensor smoke alarm from Kidde. The unit features both ionization and photoelectric sensors for detecting both smoke and flame. A loud 85-decibel alarm sounds when smoke is detected. If the alarm sounds during smoky cooking accidents, a hush button lets you turn off the alarm. The unit mounts easily thanks to an adjustable mounting bracket. UL listed, this alarm is not permitted for sale in Oregon. --Brian D. Olson

Rating : - How does one review a smoke alarm ?
It certainly LOOKS like a good smoke alarm, but I guess I won't know for sure until I have a fire !