Established in 1998, DSW Audio & Security Co., Ltd. has specilized in manufacturing Piezo siren & Alarm, Electrical siren, Battery backup siren, Outdoor Siren, Home Alarm, strobe light, magnetic contacts, reed switches, Moled Speaker Box, Car Speaker, Loudspeaker and PIR sensor, motion detector sensor, control panel, Power supplier, CCTV power supplier as well as innovation electronic items in China. With over 10 years combined experience the DSW staff can offer you the support it needs for state of the art design and now there are 20 staff work for DSW including technicians and engineers. It is usually takes 30 days to develop a new design and develop 20-30 new model each year. Our annual investment in R&D accounts for 6.5% of sales. More than 30% raw material is imported from Japan and Korea...

SHANGHAI TOTAL INDUSTRIAL CO., LTD. is located in Shanghai of China, specialized in manufacturing and sales of products in industry supplies: measurement and meters, electronic instrument, cutting tool, drill and bits, taps and die; electronic & electrical supplies: cable and wiring accessories, cable tie, cable clip, cable gland, terminal and cable lug, circuit breaker, contactor, motor starter; industrial Automation: push button switch, timing switch, power supply, relays, PIR motion sensor, counter and etc. To supply products of the highest quality, to support them with the best possible service, and to ensure that every product offers unbeatable value of money. Those were the simple objectives of our founders from 2004, and are the foundation stones of our business philosophy. Quality is...