Beijing TongyuanShunda Technology Co., Ltd （BJTYSD） is specialized in security detection equipment and protective equipment, we have a professional production, sales, maintenance, technical support, training and after-sales service. We uphold the spirit of good faith to the true professionalism, attracting experts and skills, strengthen cooperation with domestic and foreign famous companies, provide customers with quality products, good price and perfect service.The product TYSD-1000 series of portable single gas detector and four-in-one gas detector has been exported to Australia, Russia, Iran, Taiwan and more than ten other countries and regions.

    We have always believes that the concept of quality should include the production of product quality, installation and service quality. Among them, the quality of service will through the whole product life. The products we sold now are all technology-leading products, each product has its unique technical characteristics, and in their respective fields with extensive mature application. All products sold by our company, we will give the strict assurance of the quality, you can feel comfortable to buy and use.