Heiman C1-S Carbon Monoxide Detectors, UL 2034 5th Certified, CO Detector Battery Powered, 85 dB Alarm,CO Alarm for Home RVs Hotel Rental Apartment

Triple-Certified Safety

ETL Listed, UL2034 (the U.S. exclusive CO alarm standard), and FCC certifications, U.S. safety compliant,More reassuring for family use.

Simple Installation

This compact device can be easily wall-mounted or placed on a desk, making installation quick and straightforward.

No Frequent Battery Replacements

The sensor has a lifespan of up to 10 years, paired, eliminating the hassle of frequent battery replacements. The alarm features a low-battery warning function, promptly reminding you to replace the battery or the CO alarm.

Japan-Made FIGARO TGS5141 Sensor Inside

Our CO detector uses the TGS5141 sensor from FIGARO Japan, a global leader in gas-sensing technology. Unlike low-cost semiconductor sensors that can be affected by humidity, rapid temperature changes, or nearby gas appliances and trigger unnecessary alarms, the 10-year TGS5141 features a proven electrochemical design with a solid-state electrolyte for long-term stability. It delivers a linear response from 0–5000 ppm, providing precise CO level tracking and reliable performance even during sudden temperature or humidity changes. This advanced technology reduces false alerts while keeping your family protected from dangerous carbon monoxide levels.

For Home or Multiple Scenarios

Suitable for use in residential environments such as bedrooms, kitchens, garages, and attics; It is ideal for enclosed spaces like hotels. Carrying this compact CO alarm will provide added peace of mind.

Dedicated Support & 7-Year Warranty

We stand by our smart CO alarm with a 7-year warranty and lifetime technical support. If you need help with Wi-Fi setup, or have maintenance questions, our team is ready to assist. Simply visit Your Orders on Amazon, find your purchase, and select Contact Seller for quick, hassle-free help. We’ll resolve any issues promptly—no questions asked. Your peace of mind is our priority.