Smoke-Alarm w/ Batteries

Double System smoke alarm features 2 sensors for maximum protection. Ionization sensor detects fast flaming fires, photoelectronic sensor detects slow smoldering fires. Powered by (2) AA batteries (included). Repeated beeping warns that battery should be replaced. Also, has a low battery trouble silence feature. Individual test switch for each sensor, loud 85dB alarm. Patented infrared remote control technology. Patent-pending microprocessor for intelligent alarm operations. 10 year limited warranty. UL listed. Not for sale in Vermont or Oregon.