125kHz ID key fobs tags (Read only), Compatible with standard EM ID access devices or ID reader, other universal frequency of unencrypted 125kHz tags like EM4100/4102 EM-ID card type, read only, not rewritable, can't compatible with UHF reader and encrypted readers, for example, HID, Cobra, APCiK, Paradox, Radio, Honeywell, Kaba, Isonas, etc Each key fob is pre-programmed with a unique digit ID numbers, Each keyfob has metal keyring, Easy to carry, Water resistant Casing Material: ABS Plastic, Color: Blue.Approx, Size: 1.3*1.1*0.2 inch, Package includes 20 PCS. Widely used at apartment, office, access control, hotel locks, school campus access, identification, parking lot entry,etc to implement the pre-set function such as Unlock,door open, management 125kHz ID Proximity ID Token Tag Key keyfobs for Access Control

Product Description:
Color: Blue.
Chip: TK4100.
Material: ABS waterproof material.
Card type: Standard EM card, works as a regular 125KHz ID.
Each card pre-programmed with a unique ID number which is printed on it.
Compatible with standard EM ID access devices or ID reader,Contactless transmission of data and supply energy.
Suitable for 125KHz card reader, detection distance, 2-10mm / 0.08-0.39"(depends on reader).

【Notice that key fobs is read only and not rewritable, Can't support HID, Can't been programmed】

Application:
Access control attendance, hotel locks, staff attendance, school campus access, membership management, access control system and related applications.

Package included:
20 PCS x 125kHz ID Keyfobs

【Notice that key fobs is read only and not rewritable, Can't support HID, Can't been programmed】