About Yisen:Only Yisen can offer you the most comprehensive range ofvehicle security systems. Established in 1985, our companyis a professional designer and manufacturer of mini-simpleDIY alarms, highly technical vehicle securities andtransponder systems. Our production lines includefingerprints and two-way car alarms, transponders,immobilizers, keyless entry systems, motorcycle alarms,central door locking systems, electronic sirens, controlledgarage openers and back sensors.Yisen has over 20 years of experience:With more than 20 years of experience and a strong R&D, youcan give us your vehicle security requests, and we willcome out with a solution. Yisen's R&D department isconstantly updating our product ranges to ensure that weare in the forefront in the development of car andmotorcycle security products.ISO 9001: 2000 approved:Certified by ISO 9001 guidelines, our products are wentthrough a rigorous inspection to generate products in linewith E-Mark and CE standards. Please browse through ourwebsite to get full details about our products and servicesor e-mail your inquiries to us today. ... 
Taiwan