Shenzhen Nuoan Technology Co., Ltd. was formerly known as Nanhai petroleum Electronics Enterprise Co., Ltd. established in 1985. Now it is a national high-tech enterprise and an international leading professional manufacturer in R & D, production and sales of gas sensors, gas and volatile organic compounds (VOCs) detection and monitoring equipment. The company's products include eight series and more than 200 varieties, including point gas detector, volatile organic compounds (VOCs) detector, portable gas detector, gas alarm controller and monitoring system, volatile organic compounds (VOCs) online monitoring system, audible and visual alarm, flame detector and gas sensor.