Products Circular Connectors RD24 7/8 Connectors Distribution Box M5 Connectors M8 Connectors M9 Connectors M12 Connectors M15 Connectors M16 Connectors M17 Connectors M23 Connectors Push-pull Connectors B series K series Heavy-Duty Connectors Pin Plug Socket Ferrule Housings Accessories Waterproof Connector I/O Systems IO-Link Modules Switches Ethernet 5-port switch IP20 Ethernet 8-port switch IP20 Ethernet 8-port switch IP67 Industrial Connectors SPE SHR SDT SSF USB RJ45 D-Sub Solenoids Hydraulic Valve Connectors BTB High-speed Connectors Vibration Sensor Connectors Industry-Specific Connectors Marine Robotics Rail Transit Servo Motor Machine Vision Communications Embodied Robots Electrical Connectors Agricultural Machinery Automotive Connectors OEM/ODM Resources Company News Industry Resources New Product News Applications Intelligent Sensors Machine vision Robotics Industrial Automation Automotive Railway Storage & Logistics Construction Machinery New Energy Marine Servo Motor Medical Telecommunications Food & Beverage Downloads Product Catalogue Product Certification System Certification Test Report About Us About Signal History Honors Laboratory equipment Production equipment Environmental Policy Social Responsibility Shenzhen Signal Electronics Co., Ltd. (trademark "Signal") is a leading manufacturer of connectors and wire harnesses, specializing in industrial connectivity solutions. Founded in 2009 and headquartered in Guangming District, Shenzhen, Shenzhen SIGNAL operates several subsidiaries, including Hunan Signal Industrial Technology Co., Ltd., Signal (Hong Kong) International Co., Ltd., Shenzhen Signal Electronics Co., Ltd. Nanjing Branch; Hunan Signal Cable Co., Ltd. Signal Phoenix Plaza Marketing Center, and Shenzhen Signal Precision Mould Co., Ltd. With a 40,000-square-meter facility and a team of over 800 professionals in R&D, manufacturing, and sales, Shenzhen SIGNAL delivers innovative, high-quality solutions tailored to customer needs. Our in-house capabilities include mold making, injection molding, metalworking, connector assembly, and wire harness processing, all backed by an advanced laboratory that meets international industry standards. Recognized as a national high-tech enterprise and a "specialized and new small giant" company, Shenzhen SIGNAL serves Fortune 500 clients worldwide. Our product range includes circular waterproof connectors, RF coaxial connectors, push-pull self-locking connectors, and aviation connectors (D38999 series). The M-series circular waterproof connectors cover M5, M8, M9, M12, M16, M17, M23, M40, 7/8", and RD24 series. We also provide fieldbus and industrial Ethernet solutions, including SPE, Ethernet, EtherCAT, PROFINET, PROFIBUS, DeviceNet, CANopen, and CC-Link series, along with IO-Link products such as splitters, field-installable connectors, distributors, and overmolded harnesses. These solutions support signal transmission, power supply, network interconnection, and data communication across industries like industrial automation, automotive, robotics, rail transit, sensors, medical, marine, and energy. With an export rate exceeding 70% for the past decade, Shenzhen SIGNAL products are trusted in over 60 countries and regions. Committed to the highest standards, Shenzhen SIGNAL implements advanced enterprise management systems and holds ISO 9001:2015, ISO 14001:2015, ISO 13485, and IATF 16949:2016 certifications. Our materials meet RoHS and REACH environmental regulations, and our products are certified by CE, UL, and TUV, achieving IP67, IP68, and IP69K protection levels. At Shenzhen SIGNAL, we uphold the values of technological innovation, scientific management, efficiency, and customer satisfaction. Our goal is to build long-term, mutually beneficial partnerships with customers and suppliers while establishing ourselves as a globally recognized leader in the connector industry. Let Shenzhen SIGNAL be your trusted expert in connectors and cable assemblies! 10 Million Sets Annual capacity Environmental Policy and Social Responsibility Signal is committed to identifying and reducing the environmental impact of its operations, activities and products. In order to assume social responsibility, regulate employee ethics, protect the environment and safeguard employee health and safety Registration of SIGNAL trade mark Moved to new factory (2200m² → 6000m²) Acquired UL764 certificate Member of SPE Association Hunan plant construction and start-up Singapore branch established High-tech Enterprise Certificate 2023 Top Ten Innovation Practice Bases of Artificial Intelligence Industry Association Shenzhen Artificial Intelligence Industry Shenzhen Independent Innovation Top 100 SMEs Standing Director Unit Certificate Contract-abiding and trustworthy enterprise Speciality, speciality and new ‘small giant’ enterprises Machine Vision Industry Alliance Member Unit