Pro Series Hardwire Interconnected Photoelectric Combination Smoke and CO Alarm with Voice Alert (3-Pack)

The Kidde Pro Series 21026624 (3 Pack of 900-0213) Front-Load Combination Smoke and Carbon Monoxide alarm offers protection from 2 hazards - fire and CO - in 1 unit. This AC-wire with battery backup alarm emits a beeping tone followed by a voice warning that clearly announces the danger by saying, "Fire! Fire! Fire!" or "Warning Carbon Monoxide". Many Provinces & Municipalities have created legislation requiring smoke alarms or specific types of smoke alarms in various settings. Certain laws also specify when homes need carbon monoxide alarms. Photoelectric smoke sensor - may detect visible fire particles associated with slow smoldering fires sooner than an ionization sensor. Electrochemical sensor technology - detects invisible, poisonous carbon monoxide & other combustible gases 9 V Front-Loading Battery Backup Change the battery without removing the unit from the ceiling, providing continuous protection in the case of a power outage. Voice Warning Announces the hazard type detected (Bilingual). Alarm announces "FIRE!" when a smoke or fire hazard is detected and announces "WARNING! CARBON MONOXIDE!" when a CO hazard is detected. Multi-function One Button Design includes: Hush® Feature Temporarily silences nuisance alarms for approximately 10 minutes. Test Feature Test's the units electronics and verifies operation. End of Life Notification Ten (10) years after unit is first powered, this alarm will emit two beeps every 30 seconds to indicate it is time to replace the alarm. 120 V Interconnectable Will interconnect with up to 24 other devices (18 of which can be initiating), including smoke alarms (limit of 12), CO and heat alarms