AlertWerks Siren and Strobe Light Get an alert sure to spur immediate action. EME1SS-005 Features - For use with AlertWerks sensor hubs as part of the AlertWerks environmental monitoring system. - Combines a strobe light and a siren. - The light source consists of eight super-bright LEDs. - Siren sounds at 100 ± 3 dB at 100 cm. - Plug-and-play installation. - Supports maximum cable runs of up to 1000 feet (304.8 m). For details, contact our FREE Tech Support. - Can be triggered by any other sensor connected to an AlertWerks ServSensor hub (see Related Items).