It is a wireless keypad that is a key component of the Infinite Prime alarm systems. The Keypad is primarily designed as an additional arming station, including three arming keys that enable Full, Part or Perimeter arming modes. Pressing the Full and Perimeter buttons simultaneously generates an SOS panic alarm. Additionally, the keypad may be used to control Home Automation modules. The main features are: One-touch Full / Part / Perimeter arm and disarm Panic alarm function 9v Alkaline battery powered