TESOR is an ISO9001 certified professional manufacturer of car security alarms, immobilizers, smartphone remote control & ADAS, we own fully equipped facilities including high speed SMT, DIP and assembly production lines, with many advanced RF & digital equipment, high-low temperature/EMC-EMI magnetic & noise interference/high voltage static electricity/vibration... reliability testing equipment, etc, we do not only produce superior quality products at competitive prices, but also develop & manufacture innovative products by using new technology to create the new market.Founded in 1989 by top management professionals and expert R&D engineers, Tesor Plus Corp started with a mature and experienced team with an average of 20 years experience in power accessories and 18 years in the security alarm industry. Our company specializes in the design and manufacture of vehicle security alarms, LCD display 2-way alarm & starter, touch-screen 2-way alarm & starter, wireless immobilizers, smartphone remote control & tracking, AVM, TPMS, DIY alarms, parking sensors and related accessories. Not only is Tesor Plus committed to providing clients with quality products we are also devoted to serving client needs before and after a sale. Excellence in our field not only means high quality goods but dedication and commitment to your specific demands.