The AJAX-HS-INDR-W is a wireless indoor siren that loudly notifies of an alarm during detector activation. It is installed indoors to warn of danger or deter intruders. Key Features: Authentication to prevent forgery Jamming detection and communication channels encryption Tampering alarm Indicates armed/disarmed state through a built-in LED An external LED is connected to the siren, if necessary Customisable sound level and alarm length during detector activation

Ajustable Volume: 80-98 dB, Opening Door Notifications, up to 5 years battery life, Duration 3-180s