The compact alarm system siren and flash can be mounted inside and outside your building. This professional combination signalling device is the crucial link of a fully functioning alarm chain. In the event of an alarm, the alarm sounder generates an extremely loud signal tone with over 110 dB sound pressure. In addition to the audible alarm, there is an optical alert from a red Xenon strobe light that is visible over long distances (flash frequency: 1.17 Hz). The alarm sounder and the strobe light can be controlled separately. The weatherproof aluminium housing (IP 34) of the combination signalling device is protected from tampering by a wall contact and a cover contact as well as by an additional internal grill. The siren and flash are supplied externally with 12V operating voltage. With a Xenon strobe, the maximum power consumption is 750mA, without strobe 350mA.