G4S Technology of Tewkesbury, Gloucestershire, United Kingdom, has added to its Javelin range of card readers. The new smart-card readers are available with and without keypads and have a glossy black smartphone design. Javelin S874 smart-card readers support high-security contactless cards, including DESFire EV1 and MIFARE Plus, as well as the latest U.S. government PIV and TWIC cards. The door unlock period is adjustable for each reader and can be specified for each user. A multicolor LED light bar and multitone audio provide feedback when a card is presented. In addition, new S870 proximity card readers are compatible with all HID 125KHz proximity cards. Javelin readers are available in North America from AMAG Technologies of Torrance, California.