Key Features . This accessory will activate the alarm when the button is pressed ideal for attracting attention in the event of an emergency.The panic button Can Be fixed or function as a mobile Panic alarm anywhere in the house.200m wireless rangeBattery IncludedCompatible with Yale intruder and; Sync alarm systems (not compatible with EF- SR- or HSA- alarm systems)Trigger alarm manually using the panic button alerting others in an emergency This smart accessory is easy to setup and pair with your Yale Sync or Intruder alarm system. This accessory will work up to 200m away from the control panel. What\'s in the Box . 1x Panic button. .