Shenzhen Opensea Technology Co., Ltd was established in 2004 and has created the famous brand "Opensea" in the security industry. Our main products are auto-dial alarm systems, wired/wireless alarm Control Panels, cameras, all kinds of gas sensors, smoke detectors, PIR sensors and motion detectors. We work hard for the safety of the world all the time! Welcome to contact us!And the OEM, ODM services are welcome !