induction frequency: 125KHz and 13.56MHz Communication method: SPI or UART can be selected Working voltage: 5V Read rate: 847kbit/s Sensing range: 13.56MHz maximum 10cm; 125KHz maximum 35cm Operating temperature: -20°C~+80°C Module size: 74×42mm Notice: JavaScript yuav tsum tau rau cov ntsiab lus no.