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Trusted by professionals worldwide, Hanwei Electronics delivers advanced gas detection solutions for homes, businesses, and industrial environments. Protect what matters most with reliable, smart, and certified gas alarms.
A leader in gas sensing technology and smart safety solutions since 1998.
Hanwei Electronics Group Corporation (Stock No.: 300007) is the largest manufacturer of gas sensors and instruments in China. Listed on China’s Growth Enterprise Board, we are committed to creating a safe, environmentally friendly, healthy, and smart living environment.
We combine sensor technology, intelligent terminals, communication systems, cloud computing, and geographic information to build a complete IoT industry chain—Hanwei Cloud—delivering comprehensive safety solutions for smart cities, industrial safety, environmental protection, and home security.
Our products are used in over 100 countries across 20+ industries including petroleum, mining, healthcare, municipal engineering, and residential safety. Most of our devices are certified by CE, TUV, ATEX, and RoHS.
From battery-operated CO alarms to smart laser gas detectors, we offer cutting-edge solutions for every safety need.
Reliable carbon monoxide detection with long-life battery operation. Ideal for homes and apartments.
Advanced infrared sensing for natural gas and LPG. Highly accurate and immune to poisoning.
Laser-based detection for ultra-fast response to gas leaks. Perfect for modern smart homes.
Designed specifically for methane (CH4) detection in residential kitchens and utility rooms.
Connects to your home network for remote monitoring via smartphone app. Part of Hanwei’s IoT ecosystem.
Next-gen smart alarm with dual-sensor capability and cloud connectivity for enhanced safety.
High-sensitivity smart alarm with infrared sensor and mobile app integration.
Compact formaldehyde (HCHO) detector for indoor air quality monitoring in homes and offices.
Engineered with precision, tested for reliability, and trusted globally.
CE, TUV, ATEX, and RoHS certified for global compliance and reliability.
Laser and infrared sensors ensure rapid detection and immediate alerts.
Connects with IoT platforms for remote monitoring and smart home automation.
Used in over 100 countries across residential, commercial, and industrial sectors.
Get answers to common questions about gas detection and safety.
Yes. Propane (LPG) is heavier than air and can pool in low areas, while natural gas (methane) is lighter than air and rises. LPG is typically stored in pressurized cylinders, whereas natural gas is delivered via pipelines.
Smart detectors offer remote monitoring, real-time alerts to smartphones, integration with home automation systems, and cloud-based data logging—providing peace of mind even when you're away from home.
It is recommended to test your gas alarm at least once a month using the test button. Also, replace batteries as needed and follow the manufacturer’s guidelines for sensor replacement.
Yes, most Hanwei products are certified by CE, TUV, ATEX, and RoHS, ensuring compliance with international safety and environmental standards.
Have questions or need a customized solution? Reach out to our team.
Tel: +86-371-67169070 / 80
Email: sales@hwsensor.com
Address: No.169 Xuesong Road, National & HighTech Zone, Zhengzhou, Henan, China
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