... and Contact ID,BOSCH,DSC,HONEYWELL,PARADOX compatible,WORK WITH LCD ALARM CENTER..ETC.HIGH QUALITY AND COST-EFFECTIV ... micro-processing technology as a control centre, high reliability, with multiple flexible interface, versatile, widely used in the family, shops ... commercial building. OEM/ODM welcomeStandard package: one control panel with backup battery and internal siren, one magnetic door sensor, ...