Frequency : 125 kHz Communication : USB Operation : Take-On Reader for ZKAccess 3.5 Or BioSecurity Tokens : LK142 Tags & LK143 Cards Power : 5VDC Features : Audible Buzzer, LED Green and Red

Frequency : 125 kHz Communication : USB Operation : Take-On Reader for ZKAccess 3.5 Or BioSecurity Tokens : LK142 Tags & LK143 Cards Power : 5VDC Features : Audible Buzzer, LED Green and Red