QR Code Access Control Converter: SMD6900D ua haujlwm ntau zaus: 134.2KHz, 125Kev Cog Lus Kho Mob: ISO 11784 / ISO11785 Nyeem qhov deb: > 20cm ua haujlwm: Kuj tseem tuaj yeem muab cov kev pabcuam customized kom tau raws li koj cov tswv yim tshwj xeeb thiab xav tau (Daim Ntawv Sib Txuas Lus Tag Nrho) Nyeem ntawv nti: Mos Kuaj Haujlwm Ua Haujlwm Hluav Taws Xob: 1W nyeem ntawv tus nqi: 2~ 3meter / s wiring txoj kev: 2.54 Ntxig-ncaj hom ua haujlwm voltage: 5V sib txuas lus interface: Siv tus nqi baud: 9600 BPS Loj: 43.43× 34.65 × 2mm kev ua haujlwm kub: -20℃ ~ + 70 ℃ Vaum: 5%~ 95% Daim Ntawv Ceeb Toom: JavaScript yuav tsum muaj rau cov ntsiab lus no.