ECI Technology Holdings Limited, an investment holding company, engages in the provision of extra-low voltage solutions primarily on central control monitoring system to public and private sector customers in Hong Kong. It operates through Installation and Maintenance Services; Security Guarding Services; and Electric Vehicle Charging Operation segments. The company offers consultation, design, integration, implementation, and maintenance services on a range of audiovisual and security systems comprising CCTV, burglar and fire alarm systems, public address systems, audio/video solutions, access control systems, car park systems, and clubhouse management systems. It also provides public ticketing and visitor system, communication and broadcasting system, license plate recognition system, Internet of Things and artificial intelligence system, octopus parking systems, satellite TV and shared antenna systems, and car charging system, as well as new generation wireless transmission technology LoRa solutions.