Main technical parameters Operating frequency: 125KHz and 13.56MHz All in one: 4 ID chip+1 IC chip Sensing distance: 2~10cm Working temperature: -40℃~+55℃ Specification: 51.5×33×10mm Shell material: ABS Color: blue Notice: इस सामग्री के लिए जावास्क्रिप्ट आवश्यक है.