QR Code Access Control Converter: SMZ-711RW POWER: DC 9 ~ 15V ua haujlwm ntau zaus: 433MHz tau txais kev nkag siab: >-105DB cov chaw taws teeb kom deb: 50 meters (tshem tawm yam tsis muaj kev cuam tshuam),Tus lej no yog tshem tawm rau tsis yog- Kev cuam tshuam nyob rau hauv theoretical deb, Vim tias kev siv cov kev cuam tshuam sib txawv ib puag ncig thiab phab ntsa kom txo qis. Feem ntau yog nomincally txog 10%-50% ntawm qhov deb. Qhov Coob: 49× 41 × 22Mm Daim Ntawv Ceeb Toom: JavaScript yuav tsum muaj rau cov ntsiab lus no.