The Kidde KN-COSM-XTR-BA uses Intelligent Alarm technology combining ionization smoke detection with electrochemical CO detection. The two sensors communicate — when either detects a hazard, it signals the other, allowing the alarm to distinguish real fires from nuisance sources and adjust sensitivity accordingly. Voice alerts announce 'FIRE!' or 'WARNING! CARBON MONOXIDE!' A single Test/Reset/Hush button verifies circuitry and temporarily silences nuisance alarms. Front-load battery door allows battery replacement without removing from wall. This model is replaced by the 30CUDR-V.
What is Intelligent Alarm technology?
Kidde's Intelligent Alarm combines ionization smoke detection (better for fast-flaming fires) with electrochemical CO detection. The two sensors communicate with each other — when one detects a hazard, it alerts the other, allowing the system to adjust smoke sensitivity and better distinguish real fires from nuisance alarms like cooking steam.
What replaces the KN-COSM-XTR-BA?
Kidde recommends the 30CUDR-V as the current-generation replacement, featuring DETECT photoelectric sensing technology, self-testing, and updated UL certifications.
# Kidde Intelligent Alarm Battery Operated Combination Smoke and CO Alarm **Model:** `KN-COSM-XTR-BA` **Brand:** Kidde **Category:** Combo Alarm Battery > The Kidde KN-COSM-XTR-BA uses Intelligent Alarm technology combining ionization smoke detection with electrochemical CO detection. The two sensors communicate — when either detects a hazard, it signals the other, allowing the alarm to distinguish real fires from nuisance sources and adjust sensitivity accordingly. Voice alerts announce 'FIRE!' or 'WARNING! CARBON MONOXIDE!' A single Test/Reset/Hush button verifies circuitry and temporarily silences nuisance alarms. Front-load battery door allows battery replacement without removing from wall. This model is replaced by the 30CUDR-V. ## 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 | No | | Peak Level Memory | No | | 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-xtr-ba-kidde-intelligent-alarm-battery-combo/