The Kidde KN-COSM-BA is a battery-powered combination smoke and carbon monoxide alarm featuring a voice warning system that announces 'Fire', 'Carbon Monoxide', 'Low Battery', and 'Smart Hush Activation'. Voice alerts eliminate confusion and clearly warn occupants of the specific hazard. Powered by 2 AA batteries with a front-load battery door — replace batteries without disconnecting from the mounting bracket. Peak level memory alerts when CO concentrations of 100 PPM or higher have been detected. This model is replaced by the 30CUDR.
What does the KN-COSM-BA announce during an alarm?
The voice system announces the specific hazard: 'Fire' when smoke is detected, 'Carbon Monoxide' when CO is present, 'Low Battery' when batteries need replacement, and 'Smart Hush Activation' when a nuisance alarm is silenced.
What has the KN-COSM-BA been replaced by?
Kidde recommends upgrading to the 30CUDR, which is the current-generation DETECT battery combo alarm with improved sensing technology, self-testing, and updated UL 217 certification.
# Kidde Battery Powered Smoke and Carbon Monoxide Alarm with Voice **Model:** `KN-COSM-BA` **Brand:** Kidde **Category:** Combo Alarm Battery > The Kidde KN-COSM-BA is a battery-powered combination smoke and carbon monoxide alarm featuring a voice warning system that announces 'Fire', 'Carbon Monoxide', 'Low Battery', and 'Smart Hush Activation'. Voice alerts eliminate confusion and clearly warn occupants of the specific hazard. Powered by 2 AA batteries with a front-load battery door — replace batteries without disconnecting from the mounting bracket. Peak level memory alerts when CO concentrations of 100 PPM or higher have been detected. This model is replaced by the 30CUDR. ## Specifications | Attribute | Value | |---|---| | Product Type | Combination Smoke + CO Alarm | | Alarm Type | combo | | Sensor Smoke | ionization | | Sensor Co | electrochemical | | Power Source | battery-aa | | Battery Backup | No | | Battery Type | AA | | Battery Count | 2 | | Battery Replaceable | Yes | | Voice Alerts | Yes | | Voice Messages | Fire!, Warning, Carbon Monoxide | | Smart Wifi | No | | App Connected | No | | Ring Ecosystem | No | | Interconnect | No | | Interconnect Type | none | | Wire Free Rf | No | | Self Testing | No | | Hush Feature | Yes | | Smart Hush | Yes | | Peak Level Memory | Yes | | Digital Display | No | | Low Level Co Alert | No | | Explosive Gas Detection | No | | Indoor Air Quality | No | | Strobe | No | | Egress Light | No | | Alarm Db | 85 | | Ul Smoke | UL 217 | | Ul Co | UL 2034 | | Warranty Years | 10 | ## What's Included - alarm unit - 2 AA batteries - mounting hardware Source: https://www.jaspecs.com/kidde/combo-alarm-battery/kn-cosm-ba-kidde-battery-combo-alarm-voice/