10-Year Sealed Battery 2-in-1 Smoke & Carbon Monoxide Detector Alarm CO & Smoke Alarm Detector with Backlit LCD Display & V-0 Flame-Retardant

KIMROG combination smoke and carbon monoxide detector runs on a built-in 10-year lithium battery (Not Hardwired), equipped with automatic self-checks every 60 seconds—no battery replacement needed, even during power outages. Designed as a stand-alone unit, it requires no Wi-Fi, interconnection, or base station. Fully compliant with UL 2034 and EN 50291 safety standards. 【10-YEAR SENSITIVE & RELIABLE SENSOR】 With 10-year electrochemical sensor that self-tests every 16's, Photoelectric sensor that self-tests every 8's, also provides accurate, real-time readings from 30 to 999 ppm. Alarm activation is based on CO concentration over time: for example, the alarm is triggered when the CO concentration reaches 75 ppm for 60 minutes. When it reaches 300 ppm, the alarm is triggered within 3 minutes.This ensures fast alerts when necessary and avoids false alarms below threshold. 【MULTI-MODE ALERT SYSTEM】 This 2in1 smoke and CO detector uses a triple-alert design—85dB audible alarm, flashing LED, and backlit LCD screen. The clear LCD and bright LED indicators provide clear updates on low battery, end-of-life, and fault conditions, helping users maintain safety at all times. 【EASY INSTALLATION】 The combination smoke and CO alam is easy to install and is ideal for bedrooms, garages and RVs. 【FLAME-RETARDANT HOUSING】 It features a V-0 flame retardant housing for durability and safety.

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