Heiman HM-733NS Gas Alarm: North America’s First UL1484 6th Edition Certified 10-Year Battery Model

When it comes to home gas safety in North America, compliance with authoritative standards and long-term reliability are the two core demands of households and businesses. In 2025, with the official release of the 6th edition of UL1484, the most stringent safety standard for residential gas alarms in North America, the market ushered in a new threshold for gas alarm products. Against this backdrop, heiman, a leading Chinese smart security brand, launched the HM-733NS Gas Alarm, the first product in North America to pass the UL1484 6th Edition certification, and it comes with a 10-Year Battery life, redefining the benchmark for home gas safety in the region.

UL1484 is recognized as the "gold standard" for gas alarm safety in North America, and the 6th edition, released on April 28, 2025, has comprehensively upgraded in terms of corrosion resistance, environmental adaptability, and long-term stability compared to the previous version. One of the key updates is the addition of an optional 21-day corrosion test, which simplifies the certification process for manufacturers while raising the bar for product reliability—especially for DC-powered devices using electrochemical sensors, which previously faced greater challenges in the 10-day corrosion test required by older editions. As the first Gas Alarm in North America to meet the UL1484 6th Edition standard, the Heiman HM-733NS not only fully complies with the latest North American regulations and market access requirements but also smoothly adapts to multi-scenario compliant installations such as North American residences, apartments, and RVs, providing all-cycle safety protection for families using gas.

Beyond the authoritative certification, the 10-year long battery life of the Heiman HM-733NS Gas Alarm solves a major pain point for North American households. Traditional gas alarms often require frequent battery replacement, which not only increases maintenance costs but also creates potential safety gaps due to power outages or forgotten battery changes. The HM-733NS adopts a low-power sensing technology combined with a high-energy long-lasting power supply solution, achieving 10 years of continuous operation without battery replacement. This means that once installed, the device can monitor gas leaks 24/7 for a decade, eliminating the trouble of regular maintenance and ensuring that families are protected from gas hazards at all times.

As a national high-tech enterprise and a "Little Giant" enterprise specializing in smart fire safety, Heiman has always defined product quality with international standards. The launch of the HM-733NS Gas Alarm is not only a manifestation of Heiman’s technological strength but also a testament to Chinese smart manufacturing’s ability to lead the global home safety industry. For North American households and distributors, the Heiman HM-733NS is more than just a Gas Alarm—it is a reliable safety partner that meets the strictest standards and offers worry-free use for a decade.

Key Highlights of Heiman HM-733NS Gas Alarm:

✅ First in North America to pass UL1484 6th Edition certification

✅ 10-year long battery life, maintenance-free and worry-free

✅ High-precision gas sensor, fast response to natural gas and propane leaks

✅ Compliant with North American access requirements, suitable for multiple scenarios

✅ Heiman quality, a trusted choice for global families