Welcome ! Welcome to our e-catalog home. Here you can find information about our products. You can also send us inquiries and post comments about our company and products. We hope you enjoy your visit. Since its establishment in February 2002, DA Tech Co., Ltd has always been at the forefront of digital breathalyzer (Alcohol Tester) development. With accumulated experiences and cutting-edge technology, we spare no efforts to be a leader of thebreathalyzer industry. Our first priority is to ensure safety to those who use our products and solutions.