Welcome to DA Tech Co., Ltd. DA Tech, since its establishment in February, 2002, has been dedicated to continuous research and development. Based on accumulated experiences and know-how, we have now 14 patents registered and supply breath alcohol testers, air quality monitors and gas safety devices to domestic and overseas markets. We are one of leading manufacturers of Breath Alcohol Testers in Korea. We will put more efforts to be a global enterprise throughout development of new technology and human resources and diversification of the business. Thank you.