About This UL 2034 4th Ed. Certified, CSFM Approved, Red Dot Award-Winning: Rigorously tested to meet the latest UL 2034 4th Edition safety standard for reliable CO detection, officially California State Fire Marshal (CSFM) Approved for compliance, and recognized with a Red Dot Award for exceptional design and innovation. 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. Easy Testing & Silence Function: The Test-Hush button allows you to easily test your CO detector to ensure proper function, or temporarily silence the low battery chirp warning. Long-lasting Battery Life: Powered by a replaceable battery (included), this white samll carbon monoxide detector provides up to 10 years of continuous operation. A built-in low battery warning ensures you’ll know exactly when it’s time for a replacement. Portable & Easy to Install: Featuring a compact, small, and mini design, this carbon monoxide alarm can be placed on any flat surface—such as a desk, bookshelf, or nightstand—or easily mounted on a wall using the included screws. Perfect for home, office, hotel, RV, or travel use. Clear Indicators: A green LED shows normal operation, while a red LED and an 85-decibel alarm signal the presence of carbon monoxide for immediate alert. Overview Brand : HEIMAN Style : Standalone *1 Pack Power Source : Battery Powered Color : 1 Pack （Standalone Model） Product Dimensions : 2.75"D x 1.45"W x 2.75"H Item Weight : 3.52 ounces Alarm : Audible/Visual Operating Humidity : 5%-95% relative humidity Upper Temperature Rating : 100 Degrees Celsius Sensor Type : Electrochemical
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