Access Control, RFID Reader, UHF Reader manufacturer / supplier in China, offering Magnetic Contact Silver Wire Door Contact with Bracket for Door Access Control Security (SDC-55L) for Glass Door Open and Close, Fail Securewire Normal Close Door Contact for Door Access Control Security (SDC-55NO) for Glass Door Open and Close, Fail Safe Alloy Wire Door Contact Accessories for Door Access Control Security (SDC-55NC) Glass Door Open and Close and so on.