2 Pack Carbon Monoxide Detectors & Natural Gas Alarm Plug in,4-in-1 CO Detector & Combustible Gas Sensor with Battery Backup,Temperature & Humidity Display,Ideal for Home Travel

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• 【2 Pack 4-in-1 Carbon Monoxide Detectors & Natural Gas Detector for Home and Travel】This advanced 4-in-1 detector combines carbon monoxide, natural gas (like methane), temperature, and humidity sensors in one compact and easy-to-use device. Designed for 110V–220V AC outlets, it provides round-the-clock indoor air safety for homes, kitchens, bedrooms, RVs, apartments, and hotel rooms.
• 【Built-in 1000mAh Rechargeable Battery with USB Charging】Even during power outages, your safety is ensured. The built-in lithium battery offers up to 10 hours of continuous operation without AC power. Includes a USB charging cable for convenient recharging at home or on the go—ideal for travel, campervans, or areas with unstable electricity.
• 【Smart Digital Display with Adjustable Brightness】The large high-definition screen shows real-time data including CO concentration (PPM), gas leak status, temperature (°F/°C), and humidity (%RH). Easily adjust brightness with 4 levels: high, medium, low, and off. Even when dimmed or turned off, the screen status light blinks every 5 seconds to confirm active monitoring.
• 【High-Sensitivity CO and Gas Sensors for Fast Detection】Equipped with an electrochemical sensor for CO and catalytic sensor for combustible gases, this detector updates every 2 seconds for accurate real-time protection. Detects gas leaks such as methane, LPG, propane, and more. Also monitors temperature with ±5℃ accuracy and humidity with ±5%RH precision.
• 【85dB Loud Alarm with Visual Alerts】When any dangerous level of CO or gas is detected, the device immediately triggers an 85dB alarm and flashes the display to ensure you’re aware. This all-in-one detector acts as an early warning system for carbon monoxide poisoning and gas leaks—ideal for keeping your home and family safe, wherever you are.