Proximity key fob in 125 KHz. ISO 10373, ISO 60529. 1024 bits read / write memory. IP68. Electronic Marin™ EM4450™ TITAN™ proximity chip. IP67. PC encapsulation. Optionally printable on one side. Color options xxx = Black-011 / Red-012 / Blue-013 / Yellow-016 / Green-017 / Gray-018 / White-018. Minimum order: 1,200 units (in packages of 1,200 units).