Alcohol Tester manufacturer in china.Greenwon is located in Shenzhen baoan district, Gunagdong Province. Our company is mainly engaged in the development, production of electronic gift and health care products. Our products include electronic items such as personal alcohol breath tester , UV tester, radiation detector etc. .Our health care products include Pill box timer , blood pressure monitor etc..



For manufacture we have two production line . We have professional sales person and ...