NIGHTHAWK INTELLIGENT COMBO IONIZATION SENSOR SMOKE, FIRE, AND CO ALARM (106869)

This Intelligent Alarm provides quick warning most residential fires includingslow-smoldering and fast-flaming fires, and can detect carbon monoxide
The exclusive voice warning system eliminates confusion, by telling you if it has detected smoke or CO or if your batteries need replacing
The world’s most accurate sensor reduces nuisance alarms
Unit is complete with tamper-resistant bracket, hush button, testreset button
Two AA batteries included
7-YEAR LIMITED WARRANTY