The OS-360/365 is an hardwired outdoor backup siren combining a loud acoustic siren with a flashing light. The high-powered flashing light helps to locate the active siren. Model OS-360 is equipped with a piezo-electric siren mainly suitable for urban areas with a high building density. If necessary another piezo-electric siren (ACM-OS360) can be used. Model OS-365 is equipped with a magneto-dynamic horn siren mainly suitable for family houses or for buildings with more space around them. Two tamper switches are built into the unit. They react to removing the cover from the unit or removing the siren from the wall. The siren’s housing is made of mechanical, weather and UV-resistant plastic. The circuit board is protected against air humidity by a double layer of varnish. Specifications Power supply 10 to 17 V DC Current Consumption < 50 mA / 12 V Backup battery NiCd pack 4.8 V / 1800 mAh Lifetime approx. 3 years Piezoelectric siren (OS-360) sound level 113 dB /1 m With second piezo-electric siren (ACM-OS360) 118 dB /1 m Electro-acoustic siren (OS-365) sound level 110 dB /1 m Siren timer 19 minutes Flasher timer 60 minutes Resistance of the tamper loop in stand-by < 70 O Security grade 3 (with internal cover) EN 50131-1 Security grade 2 (without internal cover) EN 50131 Environmental class IV -25 to +60°C Dimensions 230 x 158 x 75 mm

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