... 4 buttons, 4 keys 2.Control rolling door, window,fireplace, security alarm system 3.Factory sell RF Remote ... /CPortshenzhenCertificationISO9001, 14001CertificationRohs, CE, FCCFunctioncontrol roller curtain ,garage door, remote sensing ,fire place and wireless security alarm ... industriesAdvantages of Shenzhen C&D Electronics Co.,lTD:1. More than 1000 workers,12 Advanced ...