Shenzhen Homeusys Sci & Tec Co., Ltd., also called JDKJ, is a high-tech security and protection products manufacturer, incorporating with research and development, manufacture, marketing, installation and maintenance in door entry systems: video door phones and door locks. Our products include: Video Door Phones, LED/LCD outdoor stations with CCD or CMOS cameras, B/W or Color indoor units, NDT Appliance Control Systems, NDT Meter Read Systems and Digital Door/Cabinet Locks. Most of the items comply with ISO 9001:2000 Quality System, CCC Certificate, CE and RoHS Report. Our brand NDT has...