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Addressable electronic sounder with flashing light, with isolator. It's powered directly from the loop. Addressable by rotary switches. Sound power up to 97dB @ 1m. With a short circuit isolator. CPR certified in accordance with EN 54-3/17. 15-32VDC power supply from loop. NOTA BENE: This product is not approved to EN 54-23 (Visual Alarm Device) and must not be used as a visual alarm device to provide a primary warning notification of fire. Power supply with consumption in stand-by 225 microA and 14.7mA at maximum volume. Frequency flashing 1 Hz. Operating temperature -25°C to +70°C. Umidità relativa sino a 95%. Degree of protection IP 24, IP 44 or IP 65 depending on the support used. Featuring fast and simple installation and control the Opal wall mount souder/beacon is powered by the fire panel via the loop wiring. Control of the devices is enabled using on-board switches or via the Opal digital protocol using the control panel. The range is installed simply by a twist fit onto the B501AP base.