10Pcs RFID Keychain Tag Key 125KHz TK4100 EM4100 ID Read Only

125khz Chip,Read Only,can’t rewritable,If you need rewritable Keyfob

All the chip has pre-programmed with Unique ID Number,but UID can’t change,UID is pre-printed on the keyfob

it’s normal ID 125KHZ Keyfob,not H ID Keyfob,so it can’t work with HID reader

Main parameters:
Chip Model: EM4100 TK4100 Chip
Chip Usage: Read Only
Working frequency: 125 KHz
Working temperature: -45 ~+85
Readable number of times:> 10000 times
Detecting distance: 0-5cm
Packaging material: ABS
Power supply mode:passive card

What’s in the box
10 x 125khz Key Fob