Technical Parameters Power Supply: DC5V Current: 30mA Operating frequency: 125KHz±1KHz Working mode: Read-only Support card: uEM4001/uEM4102 or compatible EM ID card (125Khz, 64-divided, 64-bit Manchester encoding) Reading distance: max 6cm, sensing range depends on card shape and antenna size Reading method: read the card according to the order Reading speed: <250ms Working temperature: -10℃~+75℃ Module size: 28.3×29.6mm