The Ajax Tag in white is a contactless security key fob designed to provide a quick and secure way to arm or disarm your security system. Using DESFire® technology and the ISO 14443-A standard, it communicates with compatible control panels like the KeyPad Plus, KeyPad S Plus, and the TouchScreen series. To ensure your home remains protected, the device employs Triple DES and AES hardware encryption with a 128-bit key, making the signal highly resistant to interception. This passive device requires no batteries, which means you never have to worry about power failure. It is compact and lightweight, weighing only 7 g and measuring 45 × 32 × 6 mm, so it fits comfortably on a keychain without adding bulk. Finished in a clean white color, the fob is built to operate in temperatures ranging from -10 °C to +40 °C and humidity levels up to 75%. For those managing multiple properties, a single tag can be paired with up to 13 different Ajax hubs simultaneously. This makes it a practical choice for users who need a single key to manage several secured locations, allowing you to simply tap the fob against the keypad for instant access.