High frequency:
Short-range reader generally refers to the desktop YX7036SR-A, which has a reading distance of 0-5cm and supports dual protocols.
Medium distance reader generally refers to the reading distance of 5-30cm, such as YX909 1T, which is more suitable for this application.
Long-distance readers generally refer to the reading distance of 30- 120cm, like YX929 1T, so if the antenna and tag are well matched, they can read further.
extremely high frequency
A close-range reader generally refers to a desktop YXU9806 with a reading distance of 0-50cm, just like this.
Medium-range readers generally refer to images YXU 186 1-8dbi with a reading distance of 50-600cm, which is more suitable for this application.
Long-distance readers generally refer to the reading distance of 600- 1200cm, such as yxu1861-12 DBI. If the environment and labels are well matched, you can read further.