Shenzhen Heiman Technology Co. Limited

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Gas Detector for Carbon Monoxide Design, with 9V DC Power Batteries	Bill and Coin-operated Alcohol Tester with Fuel Cell Sensor	Gas Detector with IP54 Protection Grade, LCD Indicator and Semi-conductor	Portable Gas Alarm, Suitable for Cars, Easy to Operate
Gas Alarm and Detector for Combustible or CO Gas Detection, with Low Consumption	Coin-operated Vending Breathalyzer with Fuel Cell Sensor and Four-digit Display