HID ProxKey III Keyfob - 50 PACK

Proven, Reliable Technology - Offers extremely consistent read range. Unaffected by body shielding or variable environmental conditions, even when close to keys and coins. Convenient To Use - Can fit into a wallet or purse. Use with a strap and clip as a photo ID badge. Cross-reference - A cross-reference list correlating the external card number and the programmed ID number is provided for easy system administration. Security - Offers over 137 billion unique codes. Long Life - Passive, no-battery design allows for an infinite number of reads.