Mô tả
DEMCO Sounder/Beacon D-155’s compact design is acoustically very efficient, capable of generating high sound output at low current levels. Both models have a wide angle uniform sound distribution providing good audibility in all directions, thus making them ideal for fire, security and hazard warning.
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SPECIFICATION |
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Lowest |
Highest |
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Output @ 1 metre 24VDC |
68dB |
95dB |
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Current @ 24VDC |
13mA |
22mA |
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Voltage Range DC |
20 – 28VDC |
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Voltage AC |
230V AC (D-145AC and D-155AC) |
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Operating Frequency |
800Hz to 1000Hz |
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Number of Tones |
4 Alarm Tones • 3 Alarm Tones (D-145AC and D-155AC) |
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Volume Control |
Adjustment Screw |
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Operating Temperatures |
-20°C to +70°C |
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Size (H x W x D) |
100 X 95 X 99mm |
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Protection Classification |
IP55 (D-155) • IP65 (D-155WP) |
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Approximate Weight |
182g (D-155) • 257g (D-155WP)
235g (D-155AC) |
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