Henan Hanwei Electronics Co. Ltd

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Carbon Monoxide Alarm Sensor with LCD Display and 3V DC Power Supply	Standalone Vending Alcohol Tester with 4-digit Display, Powered by AC Adapter	Gas Alarm for Methane and Propane Gas Detection, Complies with EN50194 Standard	Gas Alarm for Methane, Propane Gas Detection with Ventilation and Shut Off Gas Supply
Car Gas Alarm, Adopts High-quality Gas Sensor with Advanced Technology	Explosion-proof Acousto-optic Annunciator	Gas Detector for Carbon Monoxide Design, with 9V DC Power Batteries	Portable Gas Detector with Maintenance-free Protection, Measures 91 x 58 x 34mm