Grove 125kHz RFID reader abled to read hitag?

Hi,

recently I purchased a Grove 125kHz RFID reader to read the ID if hitag RFID tags. I want to send it to a Arduino Leonardo by using the UART serial port and first of all I want to print it on the serial monitor. But unfortunately I am only abled to read EM4100 tags. I do not even detect that a hitag tag is close to the antenna! Can somebody help me with that problem? Is the Grove 125kHz even abled to detect 125kHz hitag?

Best Regards,
Sebastian

It is suggested that you discuss the same problem at the same top. How to deal with this kind of repetitive problem? @salman