Proximity key fob in 125 KHz. ISO 10373, ISO 60529. 64-bit read-only memory. IP68. UNIQUE™ proximity chip. IP67. PC encapsulation. Optionally printable on one side. Color options xxx = Black-011B / Red-012 / Blue-013 / Yellow-016 / Green-017 / Gray-018 / White-018. Minimum order: 1,200 units (in packages of 1,200 units).