What is the reading distance of the handheld rfid reader?

The handheld rfid reader is a device that uses radio frequency identification technology to achieve electronic tag information collection, transmission and communication functions. It has the characteristics of fast group reading, long-distance reading, and long service life, so handheld rfid read and write What is the reading distance of the device?

Factors affecting the reading distance of handheld rfid readers

1. Reader power, the greater the reader's transmit power, the greater the reading and writing distance;

2. Antenna, the larger the antenna gain and the smaller the beam width, the longer the reading and writing distance and the narrower the range;

3. Tags, active rfid tags, with battery power supply, longer reading and writing distance, and larger volume; passive rfid tags without batteries, lower cost, long service life, and shorter reading and writing distance;

4. The environment, whether there is electromagnetic interference with close frequency in the environment, etc., will affect the recognition distance.