Medical wristbands have low frequency, high frequency, ultra-high frequency and active 2.45GHz. Ultra-high frequency and active 2.45GHz
Low frequency is characterized by strong penetration ? But the distance is also very close. Less interference from liquids. Mature technology
High frequency is characterized by a relatively long distance ? For example, HD2280 is used as an open channel in personnel management to do personnel in and out of the management (management of people wearing wristbands whether they enter or leave the inpatient department or wards, etc.)
Ultra-high-frequency is characterized by a long distance ? But by the liquid interference is also big ? With UR6258 read-write can generally be read to 6-10 meters
Active is characterized by a longer distance ? But the cost is relatively high ? The wristband is with battery