Profile: Shenzhen Meidasi Technology Development Co.,Ltd. is a manufacturer of safety alarm systems, GSM alarm systems, digital alarm receivers, surveillance cameras, standalone DVR and other related security products. We are an ISO 9001:2000 certified company. Hardwired alarm system is a less expensive and more maintenance free-alarm system. If something go wrong with a hardwired component, it will be more easier to replace parts. Security 800 series alarm control panel takes advanced microprocessor as its core technology. So it has the advantages of high integration, very good stability, flexible function and convenient use. 800 Series commercial (hardwired) alarm system is a compact and powerful alarm control panel with up to 16 zones. Zone inputs with optional doubling allows conversion of 6 on-board zones into a maximum of 16 wired zones.