Shenzhen Tengweida Electronic Co.,Ltd. is one of the leading manufacturers in Shenzhen, China, Specializing in various wired CCD cameras, 600TVL PIX cameras,PTZ cameras, DVRs and cctv accessories. Clients in Europe, America,South America and South East Asia are benefiting from our products. Wide range of products We are offering complete range of CCTV IR cameras with the IR distance from 15 to 130m, and all waterproof IR cameras can be built in anti-reflection glass to prevent the light reflection. We have a wide range of the camera chips for your choice: • 1/3" Sony chips (420TVL, 540TVL, 560TVL, 600TVL and 700TVL) • 1/3" PIX chips (600TVL) • 1/4" Sony chips (420TVL) • 1/3" Sharp chips (420TVL) and 1/4" Sharp chips (420TVL) All the products are very popular with the customers throughout the world. Stringent inspection We conduct • Long-time aging tests: for main boards and IR boards, the test lasts at least 120 hours under the temperature over 50deg. C; for finished products, we double-test them for another 120 hours under the temperature over 50deg. C • Good secondary materials for cameras, such as IC chips, LEDs, transistors and capacitance. We use the brand of ROHM, TOSHIBA and AVX to ensure the product quality • All cameras use high quality crystal filters to secure clear, crisp image and color R&D capability With more than 10 years experience, it is easy for our skilled engineers to solve most of the technical problems. Also, we always buy the similar cameras from our competitors, test and compare them with ours, and then we make improvement and update our products. Choose from our over 500 models of CCD cameras, PTZ cameras, DVRs and accessories. We deliver your samples within 5 days, and 1,000-unit order in one week. Contact us now.